Alaska AK STAR Grade 3 Math Standards Practice Map

Categorize shapes by different attribute classifications and recognize that shared attributes can define a larger category. Generalize to create examples or non-examples

Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole

Tell and write time to the nearest minute and measure time intervals in minutes. Solve word problems involving addition and subtraction of time intervals in minutes or hours (e.g., by representing the problem on a number line diagram or clock)

Estimate and measure liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l). (Excludes compound units such as cm³ and finding the geometric volume of a container.) Add, subtract, multiply, or divide to solve and create one-step word problems involving masses or volumes that are given in the same units (e.g., by using drawings, such as a beaker with a measurement scale, to represent the problem). (Excludes multiplicative comparison problems [problems involving notions of "times as much."])

Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step "how many more" and "how many less" problems using information presented in scaled bar graphs

Measure and record lengths using rulers marked with halves and fourths of an inch. Make a line plot with the data, where the horizontal scale is marked off in appropriate units—whole numbers, halves, or quarters

Recognize area as an attribute of plane figures and understand concepts of area measurement

Measure areas by tiling with unit squares (square centimeters, square meters, square inches, square feet, and improvised units)

Relate area to the operations of multiplication and addition

Solve real-world and mathematical problems involving perimeters of polygons, including:

Use place value understanding to round whole numbers to the nearest 10 or 100

Use strategies and/or algorithms to fluently add and subtract with numbers up to 1000, demonstrating understanding of place value, properties of operations, and/or the relationship between addition and subtraction

Multiply one-digit whole numbers by multiples of 10 in the range 10-90 (e.g., 9 × 80, 10 × 60) using strategies based on place value and properties of operations

Understand a fraction1/b(e.g.,1/4) as the quantity formed by 1 part when a whole is partitioned intob(e.g., 4) equal parts; understand a fractiona/b(e.g.,2/4) as the quantity formed bya(e.g., 2) parts of size1/b. (e.g.,1/4)

Understand a fraction as a number on the number line; represent fractions on a number line diagram

Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size

Interpret products of whole numbers (e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each)

Interpret whole-number quotients of whole numbers (e.g., interpret 56 ÷ 8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each)

Use multiplication and division numbers up to 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities (e.g., by using drawings and equations with a symbol for the unknown number to represent the problem)

Determine the unknown whole number in a multiplication or division equation relating three whole numbers

Make, test, support, draw conclusions and justify conjectures about properties of operations as strategies to multiply and divide. (Students need not use formal terms for these properties.)

Understand division as an unknown-factor problem

Fluently multiply and divide numbers up to 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 ×5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers

Solve and create two-step word problems using any of the four operations. Represent these problems using equations with a symbol (box, circle, question mark) standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding

Identify arithmetic patterns (including patterns in the addition table or multiplication table) and explain them using properties of operations