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.
Problem 3: Grandmother Rachel mixed 20 kilograms of jam containing 15% of sugar with 15 kilograms of jam containing 40% of sugar. How many kilograms of |
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Problem 2: One of the workers in the jam factory mixed one barrel of jam containing 14% of sugar with another barrel of jam containing 30% of sugar. The new |
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The graph of y=x^2 - 2x is at right. Use this graph and any other lines which you may need to add to it to solve the equations given. Briefly explain your method. |
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Part 2: |
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Part 3: |
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· Find the number of toothpicks for the fourth, fifth, and tenth tower in each sequence |
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What can you say about c if c + d = 10 and c is less than d? |
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Mary has the following problem to solve: “Find value(s) for x in the expression: x + x + x = 12” She answered in the following manner. |
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When is the following true – always, never or sometime? |
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Is this equation always, sometimes, or never true? |
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