This interactive SMARTboard lesson is a very comprehensive lesson! It consists of 49 slides that begin with instruction for the use of BASE 10 blocks. It moves into manipulatives in which students will move hundreds (flats), tens (longs), and ones (units) to represent numbers. Lesson can be divided into multiple mini lessons. Great for small group, large group, partner work, or even independent center. You could even download it to your school drive and use in the computer lab. Manipulating the blocks to represent numbers is presented in different activities. The last slide allows students to use the blocks over and over indefinitely showing numbers from 0-999. "Monsters" are the theme and make this lesson bright, colorful, and fun. Great for introduction, further practice, or remediation of BASE 10 blocks and place value. This is the Primary Lesson, and numbers can range from 0-999. To use over and over, simply delete the Base 10 blocks that students moved to show the numbers. MUST have SMART Notebook to download and use this lesson.