Estimating with Fractions and Mixed Numbers

Topics for Today:

Today we discussed estimating operations with fractions in preparation for doing the actual arithmetic in the lessons that will follow.  We used benchmarks (values used as reference points) to help determine how to round fractional pieces to find our estimates.  We used number sense to figure out when to round fractions up or down based upon their closeness to the fraction of 1/2.  We also revisited the concept of compatible numbers to help with estimating division problems.  

Vocabulary:

benchmark

Sections Covered in Textbook:

4-1: Estimating with Fractions and Mixed Numbers (pages 187-190)

Resources & Tutorials:

1) Estimating Mixed Numbers

2) Estimating with Fractions and Mixed Numbers Class notes