In this lesson, your students will create their own math facts and practice them! They will understand that multiplication and division are opposites.

Teach your students to use tape diagrams to solve equations involving whole numbers and fractions.

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.

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.

In this lesson, students will add three-digit numbers using expanded form addition and standard algorithm addition. They'll explain their answers and highlight the steps for each of the strategies.

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.

Help your students discover patterns when multiplying by five.