Students sketch base-ten blocks in this lesson that builds both number sense and fluency adding to 20!

Your young scientists will have tons of fun visiting measurement stations and using tools to measure various objects. They'll even be able to create posters at the end of the activity.

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.

Help your students see the variety of strategies they can use to compare fractions! Students will compare their strategies with that of their classmates. Use this lesson on its own or use it as support for the lesson Fraction Wars.

Teach your students four simple steps to help them solve multiplication and division word problems with confidence.

Help your students discover patterns when multiplying by five.