# Formative Assessments

**Log in to add to the database.**

Use the fields below to narrow down the results. Combine multiple filters to get the exact results you want.

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 |
view |

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 |
view |

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. |
view |

Part 2: |
view |

Part 3: |
view |

· Find the number of toothpicks for the fourth, fifth, and tenth tower in each sequence |
view |

What can you say about c if c + d = 10 and c is less than d? |
view |

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. |
view |

When is the following true – always, never or sometime? |
view |

Is this equation always, sometimes, or never true? |
view |