# Step by Step - One- and Two-Step Problem Card Sort

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A small group card sort to tell the difference between one-step problems and two-step problems (addition and subtraction only).

Students learn to tell the difference between one-step and two-step addition and subtraction problems by sorting and then solving the problems.

By comparing the two kinds of problems, they learn to recognize the difference in the structure of a one-step problem vs. a two-step problem.

8 problems to sort and a recording sheet.

Use in small groups, during guided math, during tutoring or intervention, and in centers.

This activity includes clear and concise teacher directions, problems on cards, a recording sheet, and conversation starters that give students what they need to have meaningful academic discussions.

#### Common Core Curriculum alignment

• 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 reasonableness of answers using mental computation and estimation strategies including roundi...

• CCSS.MATH.CONTENT.3.NBT.A.2

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

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