# Formative Assessments

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Studies on algebraic thinking typically include assessment problems that are used by researchers to elicit a range of students' understanding and misconceptions. These problems are collected here and can be useful tools for teachers' formative assessment of students' comprehension of algebraic concepts.

Part 1: |
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Solve for x without using a pencil. |
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1) 15 – x =10 |
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1. Solve the equation 2(3x+4) = 6x + 9 |
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1. Solve the equation 2(3x+4) = 6x + 8 |
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1. Solve the equation 2x+3=5x−9. |
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Missing assessment problem. |
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(x+3)2 + 4(x+3) = 45 |
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Paper Folding Problem (exponential) |
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Concert Hall Problem (arithmetic sequence) |
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