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JBTE Primary Education Exam study materials
JBTE Primary Education Exam study resources

JBTE Primary Education Exam practice questions

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Question 1Child Development and Learning

According to Piaget's theory of cognitive development, which characteristic is typical of children in the preoperational stage (approximately ages 2 to 7)?

  1. They engage in symbolic play but struggle with conservation tasks. Correct answer.
  2. They understand conservation of mass and volume.
  3. They can reason logically about abstract concepts.
  4. They can systematically test hypotheses.

Explanation

Preoperational children use symbols and pretend play but are not yet able to conserve quantity, because their thinking is dominated by perceptual appearance. Conservation and abstract reasoning emerge in later stages.

Question 2Child Development and Learning

A teacher notices that a 9-month-old infant searches for a toy after it is hidden under a cloth. In Piaget's framework, this behavior indicates the development of:

  1. scaffolding
  2. egocentrism
  3. object permanence Correct answer.
  4. conservation

Explanation

Object permanence is the understanding that objects continue to exist when out of sight, and it develops during the sensorimotor stage, typically near the end of the first year. Searching for a hidden object is the classic behavioral sign of this achievement.

Question 3Child Development and Learning

Vygotsky's concept of the zone of proximal development (ZPD) refers to the gap between what a learner can do independently and:

  1. the learner's innate intelligence quotient
  2. what the learner can do with adult or peer guidance Correct answer.
  3. what the learner has already mastered
  4. the average performance of same-age peers

Explanation

The ZPD describes tasks a child cannot yet complete alone but can accomplish with support from a more knowledgeable person. Instruction is most effective when aimed at this zone.

Question 4Child Development and Learning

Erikson's psychosocial theory places the conflict of industry versus inferiority in which developmental period?

  1. Middle childhood (approximately 6 to 12 years) Correct answer.
  2. Adolescence
  3. Infancy
  4. Early childhood

Explanation

During middle childhood, children seek to master skills and gain competence through schoolwork, play, and peer activities. Repeated failure or harsh criticism can produce feelings of inferiority.

Question 5Child Development and Learning

In classical conditioning terms, a child who flinches when hearing the school bell after the bell has repeatedly been paired with a loud fire alarm is demonstrating:

  1. negative reinforcement
  2. operant extinction
  3. observational learning
  4. a conditioned response Correct answer.

Explanation

A neutral stimulus (the bell) paired repeatedly with an unconditioned stimulus (the alarm) comes to elicit a learned, conditioned response. The flinch to the bell is that conditioned response.

Question 6Child Development and Learning

Which of the following best describes the difference between a formative assessment and a summative assessment?

  1. Formative assessment is graded; summative assessment is not.
  2. Summative assessment is used only for young children.
  3. Formative assessment monitors learning during instruction, while summative assessment evaluates learning at the end of a unit. Correct answer.
  4. Formative assessment uses only multiple-choice items.

Explanation

Formative assessment is ongoing and used to adjust teaching and give feedback while learning is in progress. Summative assessment judges achievement at the end of an instructional period.

Question 7Child Development and Learning

A child who can sort objects by color but cannot yet sort by two attributes simultaneously is most likely in which stage of cognitive development?

  1. Preoperational Correct answer.
  2. Sensorimotor
  3. Concrete operational
  4. Formal operational

Explanation

Single-attribute classification is typical of preoperational thought, whereas coordinating multiple attributes develops in the concrete operational stage. This pattern reflects the preoperational child's focus on one salient feature at a time.

Question 8Child Development and Learning

According to Maslow's hierarchy, which need must generally be met before a student can focus on esteem and achievement needs?

  1. Safety and physiological needs Correct answer.
  2. Self-actualization
  3. Cognitive understanding needs
  4. Aesthetic needs

Explanation

Maslow's hierarchy places physiological and safety needs at the base, and these must be reasonably satisfied before higher-level needs such as esteem can motivate behavior. A hungry or unsafe child will struggle to engage with academic achievement.

Question 9Child Development and Learning

A teacher gives a student a sticker each time the student raises a hand instead of calling out. Over several weeks, hand-raising increases. This is an example of:

  1. positive reinforcement Correct answer.
  2. negative reinforcement
  3. extinction
  4. punishment

Explanation

Positive reinforcement involves adding a desirable consequence following a behavior, which increases the likelihood of that behavior recurring. The sticker is added after hand-raising, so hand-raising increases.

Question 10Child Development and Learning

A student who has difficulty decoding words but understands spoken language well is most likely to have a specific difficulty in:

  1. phonological awareness and word reading Correct answer.
  2. social communication
  3. expressive vocabulary only
  4. gross motor coordination

Explanation

A profile of intact oral comprehension with weak word-level reading points to a phonological processing difficulty affecting decoding. This is characteristic of dyslexia, which primarily impacts accurate and fluent word reading.

Question 11Child Development and Learning

According to Kohlberg's theory of moral development, a child who says, 'I won't cheat because the teacher will catch me and I'll get in trouble,' is reasoning at which level?

  1. Postconventional
  2. Universal ethical
  3. Preconventional Correct answer.
  4. Conventional

Explanation

Preconventional moral reasoning is guided by self-interest and avoiding punishment or gaining rewards. The child's concern with being caught and punished reflects this level.

Question 12Child Development and Learning

Which of the following is the best example of a teacher applying Vygotskian scaffolding?

  1. Giving students an answer key so they can check their own work
  2. Testing students only at the end of the unit
  3. Providing a partially completed example and gradually withdrawing support as students succeed Correct answer.
  4. Assigning independent work with no assistance

Explanation

Scaffolding provides temporary, calibrated support that is gradually removed as the learner gains competence, keeping tasks within the ZPD. A partially completed model with fading support fits this description.

Question 13Child Development and Learning

A teacher wants to reduce a student's habit of shouting out answers. Which strategy is most consistent with behaviorist principles of extinction?

  1. Send the student out of the room every time they shout out
  2. Praise the student loudly each time they shout out
  3. Consistently withhold attention for shouting out and reinforce hand-raising instead Correct answer.
  4. Ignore the behavior only on some days

Explanation

Extinction involves consistently removing the reinforcement maintaining a behavior, and it is more effective when an appropriate replacement behavior is reinforced. Withholding attention for shouting while reinforcing hand-raising applies this principle.

Question 14Child Development and Learning

A child who can reason logically about concrete objects but struggles to reason about hypothetical, abstract propositions is in which of Piaget's stages?

  1. Preoperational
  2. Sensorimotor
  3. Formal operational
  4. Concrete operational Correct answer.

Explanation

Concrete operational children can reason logically about tangible situations but have not yet developed the ability to reason hypothetically and abstractly. That capacity emerges in the formal operational stage.

Question 15Child Development and Learning

A teacher uses a running record to note a student's reading errors and self-corrections during oral reading. This is best described as:

  1. a summative norm-referenced test
  2. a sociometric measure
  3. a standardized achievement test
  4. a formative, observational assessment Correct answer.

Explanation

A running record is an observational, ongoing assessment used to inform instruction based on a student's actual reading behavior. It is formative in purpose because it guides immediate teaching decisions.

Question 16Child Development and Learning

According to Bronfenbrenner's ecological systems theory, a school and a child's neighborhood are part of which system?

  1. Macrosystem
  2. Mesosystem Correct answer.
  3. Exosystem
  4. Microsystem

Explanation

The mesosystem consists of the interconnections among microsystems, such as the relationship between home, school, and neighborhood. The microsystem refers to the immediate settings themselves, while the exosystem and macrosystem are more distal.

Question 17Child Development and Learning

A student performs better on a task while working with a more capable peer than when working alone. This outcome is best explained by:

  1. classical conditioning
  2. maturational lag
  3. the zone of proximal development and social mediation Correct answer.
  4. the stability of intelligence

Explanation

Vygotsky argued that interaction with a more knowledgeable other allows learners to accomplish tasks within their ZPD that they cannot yet do independently. The peer's guidance mediates the student's performance.

Question 18Child Development and Learning

Which statement best reflects the concept of theory of mind in early childhood?

  1. A child can perform conservation of number.
  2. A child can recite the alphabet in order.
  3. A child can classify objects into taxonomic categories.
  4. A child can accurately infer that another person holds a false belief. Correct answer.

Explanation

Theory of mind is the ability to attribute mental states to others, and success on false-belief tasks is a classic marker of its development around age four. The other options describe academic or cognitive skills unrelated to understanding others' beliefs.

Question 19Child Development and Learning

A teacher notices a child who is often restless, blurts out answers, and has trouble waiting for a turn. Which of the following is the most appropriate first step for the teacher?

  1. Refer the child for special education placement without further data
  2. Recommend immediate medication
  3. Diagnose the child with attention-deficit/hyperactivity disorder
  4. Document observations and implement structured classroom supports, then consult with specialists as needed Correct answer.

Explanation

Teachers are not qualified to diagnose clinical conditions; they should gather systematic observational data, implement appropriate classroom accommodations, and collaborate with specialists. This sequence ensures decisions are evidence-based and within the teacher's role.

Question 20Child Development and Learning

According to Piaget, which of the following is the best example of a child demonstrating conservation of liquid?

  1. The child can count the cups in a row
  2. The child can sort cups by size
  3. The child says the taller, narrower glass contains more juice than the shorter, wider glass
  4. The child recognizes that the amount of juice stays the same when poured into a differently shaped glass Correct answer.

Explanation

Conservation of liquid is the understanding that the quantity remains constant despite a change in the container's shape. The child who recognizes the amount is unchanged demonstrates conservation.

Question 21Child Development and Learning

A teacher wants to support self-regulation in young children. Which practice is most consistent with research on executive function development?

  1. Testing children frequently on self-control
  2. Eliminating play time to maximize academic instruction
  3. Increasing the amount of teacher-directed lecture time
  4. Providing predictable routines and opportunities to practice planning and waiting Correct answer.

Explanation

Executive functions, including inhibition and planning, develop through practice within supportive, predictable environments. Routines and structured opportunities to plan and delay gratification strengthen these skills.

Question 22Child Development and Learning

A teacher observes that students in a cooperative group learn more when each member has a distinct role. This finding aligns most closely with which theoretical perspective?

  1. Psychoanalytic theory
  2. Behaviorism
  3. Trait theory
  4. Social constructivism Correct answer.

Explanation

Social constructivism holds that knowledge is built through social interaction and collaboration, so assigning interdependent roles supports learning. Behaviorism, psychoanalytic theory, and trait theory do not centrally address group knowledge construction.

Question 23Child Development and Learning

A student consistently attributes failures to lack of ability and successes to luck. According to attribution theory, which intervention is most likely to improve the student's motivation?

  1. Praising the student's intelligence to build confidence
  2. Reducing task difficulty so the student always succeeds
  3. Comparing the student's performance publicly to higher-achieving peers
  4. Guiding the student to attribute outcomes to effort and strategy use Correct answer.

Explanation

Attribution theory suggests that motivation improves when learners attribute outcomes to controllable factors such as effort and strategy rather than to fixed ability. This reframing supports persistence and a growth-oriented mindset.

Question 24Child Development and Learning

A teacher designs a task that is slightly beyond what students can do alone but achievable with hints and peer collaboration. This design most directly reflects which principle?

  1. Skinnerian reinforcement schedules
  2. Piagetian disequilibrium
  3. Eriksonian identity formation
  4. Vygotskian zone of proximal development Correct answer.

Explanation

The ZPD describes the range of tasks a learner can complete with assistance but not yet independently, making it the target for instruction. Hints and peer collaboration provide the social mediation that supports learning within this zone.

Question 25Child Development and Learning

A teacher notices that a student's test anxiety increases before high-stakes assessments and interferes with performance. Which approach best reflects an understanding of the Yerkes-Dodson principle?

  1. Increase pressure to build resilience
  2. Teach relaxation strategies to keep arousal at a moderate, optimal level Correct answer.
  3. Ignore the anxiety since it will resolve on its own
  4. Remove all assessments from the student's schedule

Explanation

The Yerkes-Dodson principle holds that performance is best at moderate arousal, with too much or too little impairing performance. Relaxation strategies help keep arousal in the optimal range rather than eliminating or escalating it.

Question 26Child Development and Learning

A teacher places a set of magnetic letters on a table and lets children freely explore them before any formal lesson on letter sounds. Later, the teacher introduces matching letters to their sounds. This sequence best reflects which principle of development?

  1. Development is solely determined by genetic maturation regardless of experience
  2. Development occurs in fixed stages that cannot overlap with one another
  3. Development is driven only by external reinforcement of correct responses
  4. Development proceeds from general exploration to specific skill instruction Correct answer.

Explanation

Developmental theory holds that children first engage broadly with materials and then refine understanding into specific skills, so unstructured exploration preceding targeted instruction aligns with this progression. The sequence shows a movement from whole to part, which supports later focused learning.

Question 27Child Development and Learning

A third-grade teacher wants to help students move a newly learned strategy for solving two-digit subtraction into long-term memory so they can apply it flexibly later. Which approach best supports durable, transferable learning?

  1. Provide varied problems across contexts and ask students to explain why the strategy works Correct answer.
  2. Quiz students once at the end of the unit to confirm they memorized the steps
  3. Have students practice the same worksheet format daily until errors disappear
  4. Post the steps on the board so students can copy them whenever needed

Explanation

Durable learning and transfer are supported by varied practice combined with explanation, because students encode the underlying principle rather than a single surface routine. Explaining why the strategy works promotes elaboration and deeper processing.

Question 28Child Development and Learning

A teacher reviews two students' work. Student A solved a puzzle quickly but could not say how she did it. Student B solved it more slowly and described each step clearly. Using the distinction between metacognition and automaticity, which interpretation best fits the evidence?

  1. Student A shows stronger metacognition because speed indicates mastery of the underlying process
  2. Student A shows stronger automaticity, which necessarily produces greater metacognitive awareness
  3. Student B shows stronger metacognition because she can monitor and articulate her own thinking Correct answer.
  4. Both students show equal metacognition because they reached the same correct solution

Explanation

Metacognition refers to awareness and regulation of one's own thinking, so the student who can describe her steps is demonstrating it, while speed alone reflects automaticity rather than self-monitoring. Automaticity and metacognition are separate dimensions, and a fast correct answer does not imply insight into the process.

Question 29Language Arts and Literacy

In the alphabetic principle, which statement best describes the relationship between letters and sounds that beginning readers must grasp?

  1. Sounds are learned only after whole words are memorized visually.
  2. Letters represent speech sounds in a systematic but not one-to-one way. Correct answer.
  3. Letter names and letter sounds are identical in English.
  4. Each letter always stands for exactly one unchanging sound.

Explanation

The alphabetic principle is the understanding that letters map onto phonemes, but the mapping is systematic rather than perfectly one-to-one, since digraphs, silent letters, and vowel variation exist. This principle is foundational for decoding unfamiliar words.

Question 30Language Arts and Literacy

A child says 'tup' for 'cup'. Which term names this kind of error in early phonological development?

  1. Blending
  2. Substitution Correct answer.
  3. Segmentation
  4. Elision

Explanation

Substitution occurs when a child replaces one phoneme with another, as when /k/ becomes /t/. Elision refers to omitting sounds, blending to combining sounds, and segmentation to separating them.

Question 31Language Arts and Literacy

Which classroom activity most directly develops phonemic segmentation?

  1. Counting the sounds a student hears in the spoken word 'ship'. Correct answer.
  2. Sorting picture cards into categories by initial letter shape.
  3. Reading a decodable text aloud with a partner.
  4. Writing a list of words that rhyme with 'light'.

Explanation

Phonemic segmentation requires isolating and counting individual phonemes in a spoken word, as in /sh/ /i/ /p/. The other activities address rhyme, connected reading, or visual letter features rather than phoneme-level analysis.

Question 32Language Arts and Literacy

A teacher wants students to practice blending. Which prompt best matches that skill?

  1. How many sounds are in the word 'stop'?
  2. Which word rhymes with 'cake'?
  3. What is the first sound in 'moon'?
  4. What word do you get when you join /m/ /a/ /p/? Correct answer.

Explanation

Blending is the process of combining individual phonemes into a whole spoken word, so joining /m/ /a/ /p/ into 'map' is the target skill. Counting, rhyming, and identifying initial sounds exercise different phonological skills.

Question 33Language Arts and Literacy

Which set of words is most appropriate for a lesson on consonant digraphs?

  1. chip, thin, ship, whip Correct answer.
  2. bake, bike, cake, like
  3. cat, cot, cut, kit
  4. stop, spin, snap, swim

Explanation

A consonant digraph is two consonants representing a single sound, as in ch, th, sh, and wh. The 'chip/thin/ship/whip' set isolates those digraphs, while the other sets target short vowels, blends, or silent-e patterns.

Question 34Language Arts and Literacy

A student reads 'bread' as 'bead'. Which word-analysis concept best explains the difficulty?

  1. The student has not learned the letter 'r'.
  2. The student is confusing a prefix with a suffix.
  3. The word contains an open syllable.
  4. The vowel team 'ea' has more than one pronunciation. Correct answer.

Explanation

The vowel team 'ea' can represent different sounds, as in 'bread' versus 'bead', so readers must use context and word knowledge to select the right pronunciation. This makes 'ea' an ambiguous vowel team requiring flexible decoding.

Question 35Language Arts and Literacy

Which word contains a closed syllable?

  1. rabbit Correct answer.
  2. table
  3. open
  4. paper

Explanation

A closed syllable ends in a consonant and contains a short vowel sound; the first syllable of 'rabbit' (rab-) fits this pattern. 'Paper', 'table', and 'open' begin with open syllables ending in a long vowel.

Question 36Language Arts and Literacy

Which morpheme set would best support a lesson on inflectional suffixes?

  1. -s, -ed, -ing, -est Correct answer.
  2. -tion, -ment, -ness, -ity
  3. -able, -ful, -less, -ous
  4. pre-, re-, un-, dis-

Explanation

Inflectional suffixes such as -s, -ed, -ing, and -est change tense, number, or degree without changing the word's part of speech. The other sets are derivational prefixes and suffixes that create new words.

Question 37Language Arts and Literacy

A student writes 'unhappyness' instead of 'unhappiness'. Which morphological concept should the teacher reinforce?

  1. Prefixes change the part of speech of the base word.
  2. Spelling changes when a derivational suffix is added to a base word. Correct answer.
  3. All suffixes are added without altering the base word.
  4. Inflectional suffixes always require doubling the final consonant.

Explanation

Adding the suffix -ness to 'unhappy' requires changing the final y to i, illustrating that derivational suffixes can trigger spelling changes in the base. Teaching this rule helps students generalize to words like 'happiness' and 'readiness'.

Question 38Language Arts and Literacy

Which assessment task best measures a student's orthographic knowledge of common spelling patterns?

  1. Recording the student's oral reading rate per minute.
  2. Asking the student to read a list of sight words aloud quickly.
  3. Dictating words that share a target pattern and analyzing the student's spellings. Correct answer.
  4. Having the student retell a story after listening to it.

Explanation

Dictation of pattern-based words lets the teacher examine how the student represents specific orthographic features in writing. The other tasks assess sight-word recognition, comprehension, or fluency rather than spelling knowledge.

Question 39Language Arts and Literacy

A teacher plans explicit vocabulary instruction. Which approach best reflects research-based practice for tier-two words?

  1. Relying on incidental exposure during independent reading alone.
  2. Providing student-friendly definitions and multiple meaningful encounters with the word. Correct answer.
  3. Teaching only words students will meet on the next standardized test.
  4. Asking students to copy each definition three times from the dictionary.

Explanation

Effective vocabulary instruction for tier-two words combines clear, student-friendly definitions with repeated exposure across contexts and opportunities to use the words. Rote copying and test-driven lists do not build deep word knowledge.

Question 40Language Arts and Literacy

Which context clue type is used in the sentence 'The arid desert, completely without rain, stretched for miles'?

  1. Inference from tone
  2. Example clue
  3. Contrast clue
  4. Definition clue Correct answer.

Explanation

The phrase 'completely without rain' directly restates the meaning of 'arid', making this a definition clue. Contrast clues rely on opposites, example clues on illustrations, and tone clues on connotation.

Question 41Language Arts and Literacy

A student can decode most words accurately but reads slowly and without expression. Which instructional focus is most appropriate?

  1. Instruction on identifying the main idea of a passage.
  2. Repeated reading of familiar text with modeling of phrasing and prosody. Correct answer.
  3. More practice with letter-sound correspondences in isolation.
  4. Additional phonics drills on vowel teams.

Explanation

The profile describes a fluency problem, since accuracy is adequate but rate and prosody are weak. Repeated reading with teacher modeling of phrasing and expression targets fluency directly.

Question 42Language Arts and Literacy

Which statement about the Simple View of Reading is accurate?

  1. Reading comprehension depends mainly on fluency speed.
  2. Vocabulary knowledge alone determines reading comprehension.
  3. Decoding ability becomes irrelevant once students reach grade four.
  4. Reading comprehension is the product of decoding and linguistic comprehension. Correct answer.

Explanation

The Simple View of Reading models reading comprehension as the product of decoding and linguistic comprehension, meaning both components are necessary. Neither factor alone is sufficient, and both remain relevant across grade levels.

Question 43Language Arts and Literacy

A reader encounters an unfamiliar word while reading a science article and pauses to reread the surrounding sentences. Which comprehension strategy is the student using?

  1. Using context to construct meaning Correct answer.
  2. Memorizing the text
  3. Monitoring fluency rate
  4. Skimming for gist

Explanation

Rereading surrounding sentences to figure out an unknown word is a context-based meaning-construction strategy. It reflects active comprehension monitoring rather than rate control or memorization.

Question 44Language Arts and Literacy

Which question would best prompt inferential comprehension after reading a narrative?

  1. How many chapters are in the book?
  2. Why did the main character decide to help the stranger? Correct answer.
  3. What is the name of the main character?
  4. What color was the character's coat?

Explanation

Inferential questions require readers to combine textual evidence with reasoning to explain character motivation. The other questions can be answered by locating explicit facts in the text.

Question 45Language Arts and Literacy

A teacher wants students to identify the theme of a fable. Which approach is most effective?

  1. Guiding students to connect the characters' choices and consequences to a broader life lesson. Correct answer.
  2. Having students copy the final sentence of the fable.
  3. Asking students to count how many times the moral word appears.
  4. Asking students to list every character in the story.

Explanation

Theme is an abstract message about life that readers infer from characters' actions and outcomes. Connecting choices and consequences to a general lesson supports thematic reasoning, whereas listing characters or copying sentences does not.

Question 46Language Arts and Literacy

Which feature is characteristic of informational text rather than narrative text?

  1. Dialogue between characters
  2. A conflict and resolution structure
  3. Headings, captions, and a glossary Correct answer.
  4. A first-person narrator describing events

Explanation

Informational texts typically use organizational and text features such as headings, captions, and glossaries to convey factual content. Conflict, dialogue, and narrative voice are hallmarks of narrative text.

Question 47Language Arts and Literacy

A student's persuasive essay states an opinion but offers no supporting reasons. Which revision should the teacher recommend first?

  1. Include a personal greeting to the reader.
  2. Replace the opinion with a question.
  3. Add reasons and evidence that support the stated opinion. Correct answer.
  4. Add more adjectives to make the writing vivid.

Explanation

Persuasive writing requires a clear claim supported by reasons and evidence. Without support, the opinion stands unsupported, so adding reasons and evidence is the highest-priority revision.

Question 48Language Arts and Literacy

Which sentence uses a coordinating conjunction correctly to join two independent clauses?

  1. The students finished their projects, so displaying them in the hall.
  2. The students finished their projects so the teacher, displayed them in the hall.
  3. The students finished their projects, so the teacher displayed them in the hall. Correct answer.
  4. The students finished, their projects so the teacher displayed them.

Explanation

A coordinating conjunction can join two independent clauses when preceded by a comma and followed by a complete subject-verb clause. Only the first option has two full clauses joined by comma plus 'so'.

Question 49Language Arts and Literacy

In the sentence 'The librarian, who had organized the shelves, handed each student a bookmark,' what is the function of the clause 'who had organized the shelves'?

  1. It is a restrictive clause essential to identifying the librarian.
  2. It is an adverbial clause modifying the verb 'handed'.
  3. It is a nonrestrictive relative clause adding extra information. Correct answer.
  4. It is an independent clause that could stand alone.

Explanation

The clause is set off by commas and provides additional, nonessential information about the librarian, making it a nonrestrictive relative clause. Restrictive clauses are not set off by commas and are needed to identify the noun.

Question 50Language Arts and Literacy

Which revision best combines the sentences 'The rain stopped. The children went outside.' into one sentence with a clear cause-and-effect relationship?

  1. The rain stopped; the children went outside quickly.
  2. Because the rain stopped, the children went outside. Correct answer.
  3. The rain stopped, the children went outside.
  4. The rain stopped and the children, went outside.

Explanation

Using 'because' explicitly signals the causal relationship between the rain stopping and the children going outside. A comma splice, a misplaced comma, or a semicolon without a causal connector does not express the intended logic.