How much longer is a blue whale than an orca? Teach your students to use bar models and number sentences with variables as they solve these wild word problems!

Multiplication is no longer a mystery when it is partnered with addition! Help your students make connections between multiplication and repeated addition with this hands-on lesson that includes several types of concrete examples.

Life cycles go around and around! In this technology-integrated lesson, students will research various animal life cycles and write about them.

Grid puzzles are a terrific way to practice thinking about math! In this lesson, students are asked to solve addition grid puzzles and compare processes. Use it on its own or as support for the lesson Solving KenKen Puzzles.