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# Guess and Check, Work Backward

## Solve story problems using estimation and evaluation

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Guess and Check, Work Backward

by CK-12 //at grade

Explore how to solve word problems using the guess, check, and revise strategy.

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## SLT 1 Explore the nature of inverse operations.

by MCPS Math //at grade

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## Real-World Application Equations

by Susan Sudberry //at grade

Solve word problems using the guess, check, and revise strategy.

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• PLIX

## Guess and Check, Work Backward: Which Boxes

by CK-12 //at grade

Guess and Check, Work Backward Interactive

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• PLIX

## Guess and Check, Work Backward: Weighing Fruit

by CK-12 //at grade

Guess and Check, Work Backward Interactive

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• PLIX

## Guess and Check, Work Backward: Weighing Scales

by CK-12 //at grade

Guess and Check, Work Backward Interactive

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• PLIX

## Guess and Check, Work Backward: Comparing Gummy Bear Weights

by CK-12 //at grade

Guess and Check, Work Backward Interactive

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• PLIX

## Guess and Check, Work Backward: Packing Shopping Bags

by CK-12 //at grade

Guess and Check, Work Backward Interactive

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• Video

## Problem Solving Strategies- Guess and Check and Work Backwards: A Sample Application

by CK-12 //at grade

This video demonstrates a sample use of the problem solving strategies: "Guess and Check" and "Work Backwards."

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• Video

## Problem Solving Strategies- Guess and Check and Work Backwards: An Explanation

by CK-12 //at grade

This video demonstrates a sample use of the problem solving strategies: "Guess and Check" and "Work Backwards."

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## Guess and Check, Work Backward Quiz

by CK-12 //at grade

Quiz for Guess and Check; Working Backward.

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• Practice
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## Guess and Check, Work Backward Practice

by CK-12 //at grade
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• Critical Thinking

## Guess and Check, Work Backward Discussion Questions

by CK-12 //at grade

A list of student-submitted discussion questions for Guess and Check, Work Backward.

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## Guess and Check, Work Backwards Card Sort Activity

by CK-12 //at grade

Sort out a jumble of key words into categories using the Card Sort strategy. This activity may help you to develop skills for remembering key words and concepts.

0
• Pre and Post Read

## Guess and Check, Work Backward Pre and Post Read

by CK-12 //at grade

To activate prior knowledge, to generate questions about a given topic, and to organize knowledge using a KWL Chart.

0
• Pre and Post Read

## Guess and Check, Work Backwards KWL Chart

by CK-12 //at grade

With this KWL Chart, reflect on your prior knowledge of a concept, come up with questions you’re curious about, and come up with answers from the reading.

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• Real World Application

## Car Loan

by CK-12 //at grade

Students apply their understanding of the guess and check problem solving method and solving multi-step equations by looking at options for a car loan.

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