CCSS.Math.Content.4.OA.A

CCSS.Math.Content.4.OA.A is a cluster heading. These are the individual standards under it.

• CCSS.Math.Content.4.OA.A.1

  Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represe...

• CCSS.Math.Content.4.OA.A.2

  Multiply or divide to solve word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to rep...

• CCSS.Math.Content.4.OA.A.3

  Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be...

01

What Students Need to Do

Students choose and use addition, subtraction, multiplication, and division to solve whole-number problems. They represent multiplicative comparisons and multistep situations with equations. They explain remainders and check whether answers are reasonable.

02

What Mastery Looks Like

A student can turn a word problem into an equation with a letter for the unknown. They solve accurately and explain what each step means. They interpret remainders and use estimation or inverse operations to check.

03

Common Misconceptions

Students may read three times as many as add 3 instead of multiply by 3. They may ignore remainders or apply operations in the order numbers appear. Some accept unreasonable answers without estimating or checking.

04

How to Assess It

Give this exit ticket: A library has 8 shelves with 36 books each. After 59 books are checked out, the remaining books are divided among 5 bins. Write an equation with a letter, solve, interpret the remainder, and check your answer.

1. 01

   Use counters and cups to model four times as many, then write matching multiplication and division equations.

2. 02

   Ask students to compare two solutions to a multistep problem and write which operation choices make sense and why.

3. 03

   Play Operation Sort: students draw problem cards, name the needed operations, solve, and earn a point for a reasonable estimate.

4. 04

   Plan a class snack order with a fixed budget, package sizes, and leftovers, using whole-number costs and quantities.

• CCSS.Math.Content.7.NS.A.3

  Solve real-world and mathematical problems involving the four operations with rational numbers.

• CCSS.Math.Content.3.OA.D.8

  Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the rea...

• CCSS.Math.Content.3.OA.D

  Solve problems involving the four operations, and identify and explain patterns in arithmetic.