Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.

Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.

Practice finding unknown numbers in addition equations using fun and silly word problems.

This lesson helps students develop an ability to compare and contrast as they explore two strategies to solve three-digit addition problems. This EL Math lesson can be used alone or alongside Three-Digit Addition Strategies Review.

Support your students' understanding of word problems as they invent strategies to add three addends in any order. Use this scaffolded EL lesson plan alone or with How'd You Get that Many?

Students will get plenty of practice composing tens with ten frames to add to 20! Use this scaffolded EL Lesson alone or for more addition practice before teaching the Scavenger Hunt Addition lesson.

Challenge students to find the sum of three addends while playing a fun dice game! Use this scaffolded EL Lesson alone or for more addition practice adding with dice in preparation for the Active Math lesson.

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

Students put their understanding of one and 10 more to work as they write word problems for classmates to solve. This lesson plan can be used alone or with Picture Addition.