The purpose of this lesson is to use estimation strategies to predict sums.
Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.4: Addition and Subtraction - Estimating Sums
The purpose of this lesson is to use estimation strategies to predict differences.
Included is a YouTube video to support Grade 3 Blended Learning Math - Unit 3.8: Addition and Subtraction - Estimating Differences
The purpose of this lesson is to review estimation strategies and use them to help check answers - (front-end rounding, using benchmarks to help with rounding, compensation, compatible numbers)
Included is a YouTube video to support Grade 5 Blended Learning Math - Unit 2.7: Whole Numbers - Estimating to Check Answers.
The purpose of this lesson is to add the strategy of "guess and check" or "guess and test" to a grade 5 mathematics estimation strategies toolkit.
Included is a YouTube video to support Grade 5 Blended Learning Math - Unit 2.8: Whole Numbers - Strategies Toolkit.