Use this support lesson to provide students with the opportunity to explore what it means to estimate. This hands on activity can be used alone or alongside the lesson Estimating Length.

Help students use two strategies that will help them figure out which three-digit number is greater than, less than, or equal to another three-digit number. Use on its own or with Let's Compare! Place Value Disks & Three-Digit Numbers.

Help students develop compare and contrast skills while they examine digital and analog clocks. This lesson can be used independently or in conjunction with the lesson Time to Tell Time: Showing and Writing Time.

Lay the foundation for multiplication by introducing your second graders to the concepts of skip counting and repeated addition. This lesson can be used alongside Up, Up, and Array, or separately to reinforce these important skills.

Help your students learn the standard measures of length and foster critical thinking with this engaging lesson. Use alongside The Smaller They Come or as a stand-alone activity.

Help your students make sense of the greater than, less than and equal to in this interactive lesson! Your students will have opportunities to compare either two-digit or three-digit numbers.