# Cardboard Circus - Choose the Right Operation

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PDF | 6 pages|Grades: 4 - 5

A small group activity focused on choosing the right operation to solve one-step problems.

In small groups, students read a problem card and secretly write the operation on a whiteboard. Then “1-2-3-Show!” They show their operations and discuss why they are correct. After deciding the operation for each problem, students work together to solve the problems. Each of the problems uses the numbers 1164, 30, and 6. This forces students to choose the operation based on the structure of the problem instead of the size of the numbers.

8 problems on cards and a problem-solving recording sheet.

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

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.

#### Australian Curriculum alignment

• ACMNA073

Apply place value to partition, rearrange and regroup numbers to at least tens of thousands to assist calculations and solve problems

• ACMNA100

Solve problems involving multiplication of large numbers by one- or two-digit numbers using efficient mental, written strategies and appropriate digital technologies

• ACMNA101

Solve problems involving division by a one digit number, including those that result in a remainder

• ACMNA291

Use efficient mental and written strategies and apply appropriate digital technologies to solve problems

• ACMNA076

Develop efficient mental and written strategies and use appropriate digital technologies for multiplication and for division where there is no remainder

TeachTransform creates fun math activities that get students involved in real math. We bring decades of education experience to the task, and we believe that students learn best when teachers and students are having fun.

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