Adding fractions with unlike denominators just doesn't work like it does when the denominators are the same. Let's make it work! Students will add fractions with unlike denominators with sums between one and two.

Getting ready to subtract fractions? This lesson reviews how to subtract like denominators and teaches students how to subtract unlike denominators. The focus is on understanding the process and reasoning behind each step.

Getting ready to add fractions? This lesson reviews how to add fractions with unlike denominators using number lines. Students will focus on understanding the process and reasoning behind each step.

Make the number work for you! Use this lesson to teach your students to add mixed numbers with like denominators using the strategy of decomposition.

Get your students excited about adding by introducing them to word problems with three addends!

Teach your students to add and subtract fractions with like denominators using a strategy that works for both operations: converting mixed numbers into improper fractions and back again!

Use a sweet treat to help students do hands-on math! Students will practice their addition skills in this yummy activity.

In this lesson, students will learn how to add a one-digit number to a two-digit number. This will help students build upon the skills needed for regrouping larger numbers.

Teach your students to subtract mixed numbers with like denominators using the strategy of decomposition. This strategy helps students to manipulate and break down numbers to help them solve tricky subtraction problems.

Double dominoes! Get your students excited to add with dominoes and playing cards. This lesson is a fun way to help your students continue to learn to add.

Help kids master fractions with the fun, fast-paced, math comparison game Fraction Wars. After a review, students are split into pairs to practice quickly comparing fractions with different numerators and denominators.

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

Students will gain fluency with adding multiples of ten in this hands-on lesson that builds number sense.

Every student can be a magician after this lesson in mentally adding and subtracting by 10. No previous magic training required!

Finding the least common multiple is an essential skill for comparing, adding, and subtracting fractions! This lesson introduces students to this concept in an interactive way.

Teach your students to add mixed numbers and improper fractions with the same denominator using the counting up strategy with number lines.

Your students have probably heard of both Mickey Mouse and Ironman, but have they ever compared and contrasted them? This lesson engages students in a fun double bubble map activity while helping them learn about internal character traits.

Let’s start building numbers! Just as building skyscrapers is a visual representation of mathematics, students will use the visual representation of base-ten blocks to add—or build—onto a two-digit number.

Students will learn to model mixed number subtraction with manipulatives using this hands-on lesson plan.

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

Have a class that can't sit still long enough to practice their addition? This activity puts math and PE together to help your kids add up to 20 while being active!

Give your students a conceptual understanding of three-digit addition with this lesson focused on base-ten blocks and drawings.

Teach your students to find the perimeter of polygons using real world examples. They will make polygon pictures using tangrams and practice finding the perimeters of the polygons in their masterpieces.

Some understandings are revealed through repeated, clear and simple steps. Use this lesson plan to teach your students to illustrate area model for products when multiplying fractions. It’s a four-step adventure!

Teach your students to draw an array using base ten notation to solve multiplication problems with two two-digit factors.

High order thinking skills are critical skills for students of all ages. In this lesson, your students will create word problems about money.

In this interactive lesson that includes the use of clock manipulatives, students will discover that addition goes beyond straightforward addition problems. Finding the elapsed time is easy with addition!

If you can see it, you can achieve it! Use this lesson to teach your students how to use visuals to determine if two fractions are equivalent.

Have your "whole" group get a "piece" of fun in this sweet and tasty math game!

Using your acting skills and a great book by Chris Van Allsburg, you will lead your students on an adventure to compare characters and events throughout a book.