Estimation resources

Students explain errors in calculations that include all operations, decimal values, and percentages.

Students estimate a multiplication problem, share their methods, discuss the front-end method, and then do more problems using front-end.

Students decide which children are estimating and which are not, and explain their reasoning.

Students select the best estimate for division and multiplication problems involving stamps, money, and baskets of pinecones.

Students estimate (and explain how) the area of two islands on a grid.

Students estimate the height and length of various items around their school.

In this practical task, students estimate how many multi-link blocks equal the length of two common classroom items. They then check their estimate with the blocks, then measure with a ruler.