Which number doesn't belong? This lesson requires students to think critically as they determine which number is not a factor of a particular number. Teach it on its own or as support for the lesson Factors Over the Rainbow.

Do your students need extra practice forming words with the suffixes -er and* -est* depending on the context? With an abundance of words to explore, your students will learn how to determine which suffix is best for each individual context.

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.