AK STAR Math Grade 9 study guide
AK STAR Math Grade 9 · Work through your exam, one topic at a time.
AK STAR - the Alaska System of Academic Readiness - is Alaska's statewide assessment system for students in grades 3–9 in English language arts and mathematics. For a Grade 9 mathematics student, it is the final grade level in that 3–9 span. The Alaska Department of Education and Early Development (DEED) partnered with NWEA to build a balanced system that connects fall and winter MAP Growth interim assessments with the Alaska spring summative assessment. The stated goals are to streamline testing, increase coherence between interim and end-of-year tests, and give educators, students, and families meaningful information about strengths and areas of need. Topics on this exam: Number and Quantity, Algebra, Functions, Geometry, and Statistics and Probability. The AK STAR Math Grade 9 study guide has 5 sections and about 1,411 words.
01Number and Quantity
Number and Quantity questions ask you to move confidently among fractions, decimals, percents, exponents, radicals, and scientific notation. Know the real-number hierarchy: natural numbers, whole numbers, integers, rationals, and irrationals.
271 words, about 1 min02Algebra
Algebra questions focus on linear equations and inequalities, systems of equations, polynomial operations, factoring, and quadratic equations. For a linear equation, isolate the variable by applying inverse operations in reverse order.
285 words, about 1 min03Functions
A function assigns exactly one output to each input. Use function notation carefully: f(3) means substitute 3 for x, not multiply f by 3.
284 words, about 1 min04Geometry
Geometry questions test transformations, congruence and similarity, angle relationships, the Pythagorean theorem, and volume. Rigid motions-translations, rotations, and reflections-preserve side lengths and angle measures, so they produce congruent figures.
291 words, about 1 min05Statistics and Probability
Statistics questions ask you to describe data and make comparisons. Know measures of center-mean, median, mode-and measures of spread such as range and interquartile range.
280 words, about 1 min