This interactive SMARTboard lesson begins with a mini-lesson that starts at the basics of ones, tens, hundreds. Students gain number sense by using graphics that provide concrete representation of numbers. Use in a small group lesson pairing it with your manipulatives. Move on through the lesson to manipulate the blocks to demonstrate expanded form. The last two slides include spinning dice that can be used over and over for expanded form practice. All slides are self checking so it works great in partner work or independent centers. Cute, colorful graphics. Created wit Smart Notebook 11. Great for grades 3-6 for introduction, practice, or remediation.