SALTA 3rd grade

3.OA.8 3.OA.9

Strand: Operations and Algebraic Thinking

Topic 11: Use Operations with Whole Numbers to Solve Problems

Topic 11:

Third grade students use the four operations to identify and explain patterns in arithmetic.

No new vocabulary words

Pick A Project: Come Sale Away! Count on the Grapefruit, Lemonade Stand

Standard 3.OA.8 Solve two-step word problems.

Review as needed

a. Solve two-step word problems using the four operations. Know how to perform operations in the conventional order when there are no parentheses to specify a particular order (Order of Operations). (Limit to problems posed withwhole numbers and having whole number answers.) b. Represent two-step problems using equations with a letter standing for the unknown quantity. Create accurate equations tomatchword problems. c. Assess the reasonableness of answers using mental computation and estimation strategies including rounding. Standard 3.OA.9 Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations. For example, observe that four times a number is always even, and explain why four times a number can be decomposed into two equal addends.

11-1 Solve 2-Step Word Problems: Addition and Subtraction 11-2 Solve 2-Step Word Problems: Multiplication and Division 11-3 Solve 2-Step Word Problems: All Operations 3-Act Math: Cash Bucket 11-4 Problem Solving: Critique Reasoning

Manipulatives for Topic 11: Place value blocks to use with Bar Diagrams