In this scavenger hunt lesson, students will look for rectangular arrays within their school environment. Whether it is a set of cubbies or windows, students will see that arrays are all around us.

Help your students practice place value with this fun, hands-on base-ten block game. Neighborhood block teams compete to win points as they work together to show expanded numbers.

Teach your students to read time to the nearest five minutes by counting by fives! Use this lesson as a stand-alone support lesson for ELs or alongside Tricky Time Telling.

Help students gain confidence in recognizing multiples of 10 as they critique a flawed response. Use as a stand-alone scaffolded EL support lesson or prior to teaching Big Spenders.

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.