Help your students learn how long a minute is with this lesson that shows them how the length of a minute can appear to change depending on the activity, all while putting their time estimation skills to the test.

Get your students explaining estimations and measurements of liquid volumes and masses of objects! Use this lesson independently or alongside Estimating Measurements of Mass and Volume Using Metric Units.

Master rounding and estimating skills by having students challenge their classmates in the Make a Big Difference game. Roll three dice two times to arrive at two three-digit numbers. The largest difference wins!

Give your students a head start in rounding with this fun lesson that gives them an easy trick to help them learn if they should round up or down to the nearest 10.

This lesson introduces students to the concepts of mean, median, and mode in a hands-on and visual way.

A line, an arrow, and a simple rule are all that separate students from rounding success. This lesson will give young mathematicians an engaging overview of place values and rounding.