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RPSC 2nd Grade Teacher study materials
RPSC 2nd Grade Teacher study resources

RPSC 2nd Grade Teacher practice questions

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Question 1Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In the context of the Rajasthan school curriculum, which of the following is an example of a formative assessment technique in a Mathematics classroom?

  1. Conducting a half-yearly written examination
  2. Asking students to solve problems on the board while giving immediate feedback Correct answer.
  3. Administering a standardized achievement test at year end
  4. Awarding grades on the annual report card

Explanation

Formative assessment happens during learning and is used to guide instruction through immediate feedback. Board work with corrective feedback allows the teacher to adjust teaching on the spot. Summative tools like annual exams and report cards measure learning after instruction.

Question 2Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best describes the role of a 'learning objective' in a lesson plan for a Science class?

  1. It records the teacher's personal notes about discipline.
  2. It states what students should be able to do after the lesson. Correct answer.
  3. It lists the materials needed for the experiment.
  4. It summarizes the marks distribution for the term.

Explanation

A learning objective is a precise statement of the observable behaviour or competency students should demonstrate by the end of a lesson. It guides both activity design and assessment. Materials, discipline notes, and marks distribution are separate administrative concerns.

Question 3Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Social Science teacher wants students to understand the causes of the 1857 revolt in Rajasthan. Which instructional approach is most appropriate?

  1. Assigning the chapter for silent reading without discussion
  2. Dictating a summary of events for students to memorize
  3. Showing a film with no follow-up activity
  4. Using primary sources and local accounts for guided discussion Correct answer.

Explanation

Historical understanding is best developed through analysis of evidence and discussion of multiple perspectives. Primary sources and local accounts let students construct causal reasoning. Passive methods like dictation or silent reading do not develop historical thinking.

Question 4Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In a Hindi language class, a teacher asks students to rewrite a paragraph changing direct speech into indirect speech. Which language skill is being primarily assessed?

  1. Oral fluency
  2. Grammatical transformation in writing Correct answer.
  3. Listening comprehension
  4. Vocabulary recall through dictation

Explanation

Converting direct to indirect speech is a grammatical transformation exercise carried out in writing. It tests control of reported-speech structures rather than listening or speaking. Dictation would test spelling and recall, not transformation.

Question 5Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Mathematics teacher gives a problem: 'A train travels 240 km in 3 hours. What is its average speed?' A student answers 80 km/h. Which concept has the student correctly applied?

  1. The relationship between distance, time, and speed Correct answer.
  2. The formula for area of a rectangle
  3. The principle of compound interest
  4. The rule for simplifying algebraic fractions

Explanation

Average speed is computed by dividing total distance by total time, so 240 ÷ 3 = 80 km/h. This directly applies the distance–time–speed relationship. The other options involve unrelated mathematical concepts.

Question 6Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is the most appropriate way for a Science teacher to assess a student's experimental skill?

  1. Assigning a written essay on the history of chemistry
  2. Giving a multiple-choice test on laboratory safety
  3. Asking the student to define the term 'observation'
  4. Observing the student performing a titration using a checklist Correct answer.

Explanation

Experimental skills are psychomotor and procedural, so they must be assessed by direct observation during performance. A checklist of steps provides objective evidence of technique. Written tests cannot capture manipulative skill.

Question 7Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In the teaching of English as a second language, the 'communicative approach' emphasizes which of the following?

  1. Translating every sentence into the mother tongue
  2. Memorizing grammar rules in isolation
  3. Using language for real purposes in meaningful contexts Correct answer.
  4. Copying model essays to perfect handwriting

Explanation

The communicative approach prioritizes meaningful interaction and language use for authentic purposes. Grammar is learned in context rather than in isolation. Translation and copying are associated with older, form-focused methods.

Question 8Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher notices that a student consistently makes errors in place value when adding two-digit numbers. Which remedial step is most appropriate?

  1. Providing concrete manipulatives such as bundles of sticks to model regrouping Correct answer.
  2. Ignoring the error since it will self-correct
  3. Promoting the student to the next class
  4. Giving more worksheets of the same type without explanation

Explanation

Place-value errors are conceptual, so remediation should reconnect the procedure to concrete representation. Bundles of ten sticks make regrouping visible and meaningful. Repeating identical worksheets without diagnosis reinforces the same error.

Question 9Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is an example of a higher-order question in a Social Science examination?

  1. List the districts of Rajasthan.
  2. State the year in which Rajasthan was formed.
  3. Explain how the merger of princely states shaped Rajasthan's present boundaries. Correct answer.
  4. Name the capital of Rajasthan.

Explanation

Higher-order questions require analysis, explanation, or evaluation rather than simple recall. Explaining how state merger shaped boundaries demands causal reasoning and synthesis. Naming, listing, and stating a year are lower-order recall tasks.

Question 10Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Mathematics teacher wants to introduce the concept of fractions to Class IV students. Which sequence is pedagogically sound?

  1. Give a written test on fractions before any teaching
  2. Start with simplifying algebraic fractions
  3. Begin with concrete sharing activities, then pictorial representation, then symbols Correct answer.
  4. Teach the algorithm for addition of fractions first

Explanation

Fraction concepts develop best through the concrete–pictorial–abstract sequence. Sharing activities build intuitive meaning before symbols are introduced. Starting with algorithms or symbols bypasses conceptual understanding.

Question 11Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best explains the purpose of a 'blueprint' in examination construction?

  1. To prepare the answer key after the examination
  2. To decide the fee structure for the examination
  3. To ensure balanced coverage of objectives, content, and question types Correct answer.
  4. To select the invigilators for the examination hall

Explanation

A blueprint is a table of specifications that maps questions to learning objectives, content areas, and difficulty levels. It ensures the paper samples the syllabus fairly. Fees, invigilation, and answer keys are administrative matters.

Question 12Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In teaching a poem in a Hindi class, which activity best develops aesthetic appreciation?

  1. Asking students to memorize the poem for a test
  2. Having students copy the poem five times
  3. Guiding students to recite with expression and discuss imagery Correct answer.
  4. Testing students only on the poet's birth date

Explanation

Aesthetic appreciation grows from expressive recitation and reflection on imagery and feeling. Discussion helps students respond to the poem's emotional and artistic qualities. Memorization, copying, and factual testing do not develop appreciation.

Question 13Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A student in a Science class predicts that a heavier object will fall faster than a lighter one. Which teaching response best promotes scientific thinking?

  1. Asking the student to memorize the law of gravitation
  2. Ignoring the prediction and continuing the lesson
  3. Telling the student the prediction is wrong and giving the correct answer
  4. Asking the student to design a simple experiment to test the prediction Correct answer.

Explanation

Scientific thinking develops when students test their own predictions against evidence. Designing an experiment allows the student to confront the misconception through observation. Simply supplying the answer or ignoring the prediction does not build inquiry skills.

Question 14Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is the best example of 'continuous and comprehensive evaluation' (CCE) in a school subject?

  1. Using a mix of class activities, projects, and periodic tests throughout the year Correct answer.
  2. Evaluating students only through oral quizzes on the last day
  3. Ranking students solely by terminal exam marks
  4. Conducting only one annual examination

Explanation

CCE combines ongoing assessment (continuous) with coverage of scholastic and co-scholastic areas (comprehensive). A blend of activities, projects, and periodic tests reflects both features. Single-event or single-mode evaluation contradicts CCE.

Question 15Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher wants to differentiate instruction in a mixed-ability Mathematics class. Which strategy is most consistent with differentiated instruction?

  1. Giving every student an identical worksheet of the same difficulty
  2. Teaching only to the fastest learners in the class
  3. Providing tiered tasks matched to students' current readiness levels Correct answer.
  4. Reducing the syllabus for the whole class

Explanation

Differentiated instruction adjusts content, process, or product to learners' readiness, interests, and profiles. Tiered tasks let students work at appropriate challenge levels toward the same concept. Uniform tasks ignore readiness differences.

Question 16Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In an English class, a teacher uses a 'role play' activity in which students enact a market scene. Which language skills are most directly integrated?

  1. Only spelling and punctuation
  2. Only reading and writing
  3. Speaking and listening in a functional context Correct answer.
  4. Only translation into the mother tongue

Explanation

Role play requires students to speak spontaneously and respond to others' utterances, integrating speaking and listening. The functional market context gives language a communicative purpose. Reading, writing, and translation are not the primary focus.

Question 17Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best describes the concept of 'inclusive education' in a subject classroom?

  1. Ignoring individual differences to maintain uniformity
  2. Adapting instruction so that students with diverse needs can learn together Correct answer.
  3. Separating students with disabilities into a different school
  4. Teaching only students who score above average

Explanation

Inclusive education means adapting curriculum and instruction so that all learners, including those with disabilities, participate in the same classroom. It values diversity rather than excluding or segregating students. Uniformity that ignores differences is the opposite of inclusion.

Question 18Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Social Science teacher wants students to understand the functioning of local self-government. Which activity is most effective?

  1. Lecturing on the Panchayati Raj Act for the whole period
  2. Assigning a chapter for home reading with no follow-up
  3. Organizing a mock gram sabha where students take roles and debate issues Correct answer.
  4. Asking students to memorize the names of panchayat posts

Explanation

A mock gram sabha gives students experiential understanding of roles, procedures, and decision-making in local governance. Active role-taking builds civic understanding better than passive methods. Memorizing titles or listening to a lecture does not convey how the institution functions.

Question 19Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A student solves 3/4 + 1/2 and writes the answer as 4/6. Which error has the student made?

  1. Adding numerators and denominators separately without a common denominator Correct answer.
  2. Correctly finding a common denominator but making an addition slip
  3. Correctly simplifying but miswriting the final answer
  4. Misreading the operation as subtraction

Explanation

The answer 4/6 results from adding numerators (3+1) and denominators (4+2) separately. Fractions with unlike denominators must first be converted to a common denominator before adding. The correct result is 5/4.

Question 20Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best characterizes the 'inductive' method of teaching in a Science classroom?

  1. The teacher dictates conclusions for students to copy
  2. Students observe specific examples and derive the general principle Correct answer.
  3. The teacher states the rule first and then gives examples
  4. Students memorize the definition before any observation

Explanation

Inductive teaching moves from particular observations to general principles, encouraging students to discover rules. It contrasts with deductive teaching, which begins with the rule. Memorization and dictation are neither inductive nor inquiry-based.

Question 21Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher assessing a student's map-reading skill in Social Science should focus on which of the following?

  1. Listing the oceans in order of size
  2. Locating places using coordinates and interpreting symbols on a given map Correct answer.
  3. Reciting the definition of latitude
  4. Memorizing the names of continents

Explanation

Map reading is a practical skill involving the use of coordinates, scale, and conventional symbols to locate and interpret information. Reciting definitions or listing names tests recall, not map interpretation. The task must require using the map itself.

Question 22Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In a language classroom, a teacher provides a 'language laboratory' session where students listen to recorded dialogues and repeat them. This primarily develops which aspect?

  1. Creative essay writing
  2. Pronunciation and listening discrimination Correct answer.
  3. Grammatical parsing of complex sentences
  4. Handwriting fluency

Explanation

Listen-and-repeat practice in a language laboratory targets auditory discrimination and pronunciation accuracy. Modeling and repetition help learners match prosody and sounds. It does not directly develop handwriting, essay writing, or syntactic parsing.

Question 23Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Mathematics teacher asks students to find the perimeter of their classroom using a measuring tape. Which type of knowledge does this task primarily develop?

  1. Abstract algebraic manipulation
  2. Application of measurement concepts to a real context Correct answer.
  3. Memorization of the perimeter formula only
  4. Speed of mental arithmetic

Explanation

Measuring a real room applies perimeter concepts to a concrete situation, connecting mathematics to daily life. It develops practical measurement skills and estimation. It is not primarily about algebra, rote formula recall, or arithmetic speed.

Question 24Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best describes the significance of 'action research' for a subject teacher?

  1. It enables a teacher to systematically study and improve classroom practice Correct answer.
  2. It replaces the need for lesson planning
  3. It is used only to assign grades to students
  4. It is a method for publishing textbooks

Explanation

Action research is a cyclical process in which a teacher identifies a classroom problem, intervenes, and reflects on the results to improve practice. It is practitioner-driven and context-specific. It is not about publishing textbooks, grading, or replacing planning.

Question 25Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher designs a rubric with descriptors for 'Excellent', 'Good', 'Satisfactory', and 'Needs Improvement' for a project on water conservation. What is the main advantage of using such a rubric?

  1. It guarantees identical marks for all students
  2. It removes the need for any teacher judgement
  3. It makes assessment criteria explicit and transparent to students Correct answer.
  4. It replaces the need to give feedback

Explanation

A rubric makes performance expectations explicit by describing levels of quality against criteria. Students understand what is required and how they will be judged, which supports self-regulation. Rubrics still require teacher judgement and do not equalize marks or replace feedback.

Question 26Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In the Rajasthan school curriculum, which of the following is the correct order of the stages of a plant's life cycle, starting from seed?

  1. Flowering plant → seed → seedling → fruit formation
  2. Seedling → seed → fruit formation → flowering plant
  3. Fruit formation → seedling → seed → flowering plant
  4. Seed → seedling → flowering plant → fruit formation Correct answer.

Explanation

A seed germinates into a seedling, the seedling grows into a mature plant that flowers, and pollination leads to fruit formation containing new seeds. This cyclic sequence is the standard botanical life cycle taught in Science.

Question 27Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A student writes: 'The sun rises in the east and sets in the west.' Which type of sentence is this?

  1. Compound sentence
  2. Complex sentence
  3. Interrogative sentence
  4. Simple sentence Correct answer.

Explanation

The sentence contains a single independent clause with one subject ('The sun') and a compound predicate joined by 'and', so it is a simple sentence. A compound sentence requires two independent clauses each with its own subject.

Question 28Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following fractions is equivalent to 0.75?

  1. 3/4 Correct answer.
  2. 7/10
  3. 4/5
  4. 2/3

Explanation

0.75 means 75 hundredths, which simplifies to 3/4. Dividing numerator and denominator by 25 gives 3/4.

Question 29Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

The Tropic of Cancer passes through which Indian state among the following?

  1. Punjab
  2. Tamil Nadu
  3. Kerala
  4. Rajasthan Correct answer.

Explanation

The Tropic of Cancer (about 23.5°N) crosses Rajasthan near Banswara and other districts. Kerala and Tamil Nadu lie south of it, and Punjab lies north of it.

Question 30Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which part of speech is the underlined word in the sentence: 'She sang beautifully at the annual function'?

  1. Preposition
  2. Adjective
  3. Adverb Correct answer.
  4. Noun

Explanation

'Beautifully' modifies the verb 'sang', describing how the action was performed, so it is an adverb. Adjectives modify nouns, and prepositions show relationships of place or time.

Question 31Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In Mathematics, which property is illustrated by the statement 5 × (3 + 4) = (5 × 3) + (5 × 4)?

  1. Identity property of multiplication
  2. Distributive property of multiplication over addition Correct answer.
  3. Associative property of multiplication
  4. Commutative property of addition

Explanation

The distributive property states that a × (b + c) = (a × b) + (a × c). The given statement distributes multiplication by 5 over the sum inside the brackets.

Question 32Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which gas is released by green plants during photosynthesis?

  1. Nitrogen
  2. Oxygen Correct answer.
  3. Carbon dioxide
  4. Hydrogen

Explanation

During photosynthesis, plants absorb carbon dioxide and water and, using sunlight and chlorophyll, produce glucose and release oxygen as a by-product. Oxygen is the gas given out.

Question 33Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is the correct plural form of the word 'crisis'?

  1. Crisi
  2. Crises Correct answer.
  3. Crisises
  4. Crisis

Explanation

Words of Greek origin ending in '-is' typically form plurals by changing '-is' to '-es', so 'crisis' becomes 'crises'. This follows the pattern of 'analysis → analyses'.

Question 34Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Class VII Mathematics teacher asks students to calculate the area of a rectangular garden of length 12 m and breadth 8 m. What is the area?

  1. 48 square metres
  2. 96 square metres Correct answer.
  3. 20 square metres
  4. 40 square metres

Explanation

The area of a rectangle is length × breadth, so 12 × 8 = 96 square metres. The unit must be expressed in square metres, not linear metres.

Question 35Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In a Social Science class, a teacher explains that the Indian Constitution provides for a federal structure with a strong Centre. Which feature of Indian federalism does this describe?

  1. Unitary state without states
  2. Holding together federation Correct answer.
  3. Coming together federation
  4. Confederation

Explanation

India is described as a 'holding together' federation because a large country divided its powers between the Centre and states, with the Centre retaining significant authority. 'Coming together' federations, by contrast, form when independent states unite.

Question 36Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is the correct chemical formula for common salt?

  1. CaCO3
  2. NaCl Correct answer.
  3. NaHCO3
  4. KCl

Explanation

Common salt is sodium chloride, formed from the ionic combination of Na+ and Cl- ions, giving the formula NaCl. The other formulas represent different compounds.

Question 37Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A student reads a passage and then answers: 'Why did the author describe the village as silent?' Which reading comprehension skill does this question primarily test?

  1. Decoding of phonemes
  2. Inferential comprehension Correct answer.
  3. Literal recall of facts
  4. Vocabulary recognition

Explanation

The question asks the student to infer the author's purpose and implied meaning rather than locate an explicitly stated fact. Inference involves reading between the lines, which is a higher-level comprehension skill.

Question 38Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is a rational number between 1/3 and 1/2?

  1. 3/5
  2. 2/5 Correct answer.
  3. 1/5
  4. 1/6

Explanation

Converting to decimals, 1/3 ≈ 0.333 and 1/2 = 0.5, and 2/5 = 0.4 lies between them. A common method is to find the average, (1/3 + 1/2)/2 = 5/12, and 2/5 is also between the two values.

Question 39Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best explains the role of the Governor in a state according to the Indian Constitution?

  1. The Governor is the head of the state government and heads the Council of Ministers.
  2. The Governor is elected directly by the people of the state.
  3. The Governor is the constitutional head of the state, acting on the advice of the Council of Ministers. Correct answer.
  4. The Governor exercises absolute legislative powers without ministerial advice.

Explanation

The Governor is the constitutional head of a state, while real executive power rests with the Chief Minister and Council of Ministers. The Governor normally acts on ministerial advice, except in limited discretionary situations.

Question 40Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher asks students to identify the error in the sentence: 'He do not like mangoes.' Which correction is appropriate?

  1. He does not like mangoes. Correct answer.
  2. He not does like mangoes.
  3. He did not likes mangoes.
  4. He do not likes mangoes.

Explanation

With third-person singular subjects in the simple present tense, the auxiliary 'does' is used and the main verb remains in its base form, giving 'He does not like mangoes'. Subject-verb agreement requires 'does', not 'do'.

Question 41Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following statements about the movement of the Earth is correct?

  1. Both rotation and revolution cause only day and night.
  2. Rotation causes the tilt of the axis, and revolution causes day and night.
  3. Rotation causes seasons, and revolution causes day and night.
  4. Rotation causes day and night, and revolution causes seasons. Correct answer.

Explanation

The Earth's rotation on its axis once every 24 hours produces day and night, while its revolution around the Sun, combined with the tilt of its axis, produces the seasons. The two motions have distinct effects.

Question 42Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In a Mathematics class, a teacher gives students the sequence 2, 6, 12, 20, 30, ... and asks them to find the next term. What is the next term?

  1. 44
  2. 36
  3. 42 Correct answer.
  4. 40

Explanation

The terms follow n(n+1): 1×2=2, 2×3=6, 3×4=12, 4×5=20, 5×6=30, so the next term is 6×7=42. The differences between successive terms increase by 2 each time (4, 6, 8, 10, 12).

Question 43Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following is the correct IUPAC name for CH3-CH2-OH?

  1. Ethanoic acid
  2. Methanol
  3. Ethanol Correct answer.
  4. Ethanal

Explanation

The compound has two carbon atoms and a hydroxyl (-OH) group, so the parent alkane is ethane and the alcohol suffix '-ol' gives ethanol. The formula CH3CH2OH is the standard representation of ethanol.

Question 44Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A Social Science teacher asks students to compare the causes of the Revolt of 1857 and the Non-Cooperation Movement. Which cognitive level does this task primarily demand?

  1. Remembering
  2. Applying
  3. Analysing Correct answer.
  4. Understanding

Explanation

Comparing causes across two historical events requires students to break down information, identify similarities and differences, and examine relationships, which corresponds to the 'analysing' level of Bloom's taxonomy. Simple recall or explanation would be lower levels.

Question 45Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following sentences uses the passive voice correctly?

  1. The lesson explains the teacher clearly.
  2. The teacher was explaining the lesson clearly.
  3. The lesson was explained clearly by the teacher. Correct answer.
  4. The teacher explained the lesson clearly.

Explanation

In the passive voice, the object of the active sentence becomes the subject, and the verb takes the form 'be + past participle', giving 'The lesson was explained clearly by the teacher'. The active sentence 'The teacher explained the lesson' is transformed this way.

Question 46Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A student claims that a heavier iron nail sinks in water while a lighter wooden block floats. Which principle best explains this observation?

  1. Archimedes' principle relating buoyant force to displaced fluid Correct answer.
  2. The law of conservation of mass
  3. Newton's third law of motion
  4. Ohm's law relating current and voltage

Explanation

Archimedes' principle states that the buoyant force on a body equals the weight of the fluid it displaces. An object floats if its weight is less than the buoyant force, which depends on the object's density relative to water, explaining why dense iron sinks and less dense wood floats.

Question 47Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher wants to develop the skill of 'estimation' in Mathematics among Class V students. Which classroom task is most appropriate for this objective?

  1. Asking students to solve ten identical division sums on the board
  2. Asking students to copy definitions of geometric shapes from the textbook
  3. Asking students to guess the number of marbles in a jar and then verify by counting Correct answer.
  4. Asking students to memorise multiplication tables up to 20

Explanation

Estimation involves making a reasonable approximate judgment and then checking it against the actual value. Guessing the number of marbles and verifying by counting directly builds this skill through a concrete, meaningful activity.

Question 48Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

In a Hindi class, a teacher wants students to understand the difference between 'तत्सम' and 'तद्भव' words. Which pair correctly illustrates this distinction?

  1. अग्नि (तत्सम) – आग (तद्भव) Correct answer.
  2. आग (तत्सम) – अग्नि (तद्भव)
  3. आग (तत्सम) – आग (तद्भव)
  4. अग्नि (तत्सम) – अग्नि (तद्भव)

Explanation

तत्सम शब्द are words retained from Sanskrit in nearly their original form, such as 'अग्नि', while तद्भव शब्द are their modified Hindi derivatives, such as 'आग'. The pair अग्नि–आग correctly shows this Sanskrit-to-Hindi transformation.

Question 49Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

A teacher presents data: a class of 40 students has a mean score of 60 and a median of 72. Which conclusion about the distribution of scores is most defensible?

  1. The mean and median being different proves the data are invalid.
  2. The distribution is positively skewed with some high scores pulling the mean up.
  3. The distribution is negatively skewed with some low scores pulling the mean down. Correct answer.
  4. The distribution is perfectly symmetrical.

Explanation

When the mean is less than the median, the distribution is typically negatively skewed, because a few unusually low scores pull the mean downward while the median stays near the centre. A perfectly symmetrical distribution would have equal mean and median.

Question 50Subject Knowledge (school subject specialization, e.g., Mathematics, Science, Social Science, Languages, English)

Which of the following best distinguishes a 'hypothesis' from a 'theory' in school Science?

  1. A theory is proved beyond doubt, while a hypothesis can never be tested.
  2. A hypothesis is a well-tested explanation, while a theory is an untested guess.
  3. A hypothesis is a testable prediction, while a theory is a well-supported explanatory framework. Correct answer.
  4. A hypothesis and a theory are identical in scientific usage.

Explanation

In science, a hypothesis is a testable prediction made before an investigation, whereas a theory is a broad, well-supported explanation based on repeated evidence. The common phrase 'just a theory' misrepresents the scientific meaning of theory.