Alabama 4th grade math standards

Interpret and write equations for multiplicative comparisons.

Solve word problems involving multiplicative comparison using drawings and write equations to represent the problem, using a symbol for the unknown number.

Write equations to show solutions for multi-step word problems with a letter standing for the unknown quantity.

Determine reasonableness of answers for multi-step word problems, using mental computation and estimation strategies including rounding.

Determine whether a whole number in the range 1 to 100 is a multiple of a given one-digit number.

Determine whether a whole number in the range 1 to 100 is prime or composite.

Generate and analyze a number or shape pattern that follows a given rule.

Using models and quantitative reasoning, explain that in a multi-digit whole number, a digit in any place represents ten times what it represents in the place to its right.

Read and write multi-digit whole numbers using standard form, word form, and expanded form.

Use place value understanding to compare two multi-digit numbers using >, =, and < symbols.

Round multi-digit whole numbers to any place using place value understanding.

Use place value strategies to fluently add and subtract multi-digit whole numbers and connect strategies to the standard algorithm.

Illustrate and explain the product of two factors using equations, rectangular arrays, and area models.

Illustrate and/or explain quotients using equations, rectangular arrays, and/or area models.

Apply principles of fraction equivalence to recognize and generate equivalent fractions.

Explain that comparison of two fractions is valid only when the two fractions refer to the same whole.

Decompose a fraction as a sum of unit fractions and as a sum of fractions with the same denominator in more than one way using area models, length models, and equations.

Add and subtract fractions and mixed numbers with like denominators using fraction equivalence, properties of operations, and the relationship between addition and subtraction.

Solve word problems involving addition and subtraction of fractions and mixed numbers having like denominators, using drawings, visual fraction models, and equations to represent the problem.

Model and explain how a non-unit fraction can be represented by a whole number times the unit fraction.

Extend previous understanding of multiplication to multiply a whole number times any fraction less than one.

Solve word problems involving multiplying a whole number times a fraction using visual fraction models and equations to represent the problem.

Use fraction equivalency to add two fractions with denominators of 10 and 100.

Use models and decimal notation to represent fractions with denominators of 10 and 100.

Use visual models and reasoning to compare two decimals to hundredths (referring to the same whole), recording comparisons using symbols >, =, or <, and justifying the conclusions.

Create a line plot to display a data set of measurements in fractions of a unit (1/2, 1/4, 1/8).

Solve problems involving addition and subtraction of fractions using information presented in line plots.

Within one system of units, express measurements of a larger unit in terms of a smaller unit. Record measurement equivalents in a two-column table.

Solve measurement problems involving simple fractions or decimals.

Solve measurement problems that require expressing measurements given in a larger unit in terms of a smaller unit.

Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale.

Apply area and perimeter formulas for rectangles in real-world and mathematical situations.

Identify an angle as a geometric shape formed wherever two rays share a common endpoint.

Use a protractor to measure angles in whole-number degrees and sketch angles of specified measure.

Solve addition and subtraction problems on a diagram to find unknown angles in real-world or mathematical problems.

Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines, and identify these in two-dimensional figures.

Describe right triangles as a category, and identify right triangles.

Identify line-symmetric figures and draw lines of symmetry.