http://phet.colorado.edu/fr/simulation/fractions-intro
Math and Science Lessons for Teachers Using the SMART Board Interactive Whiteboard Classroom technology just got smarter with Notebook collaborative learning software. Teachers can easily design dynamic lesson activities using Notebook software and deliver those lessons on their SMART Board interactive whiteboards. Notebook software has a work area, easy-to-use tools, and content. The lessons provided on this site will give you a taste of the many exciting things you can do in Notebook software. You can see just how easy it is to create and deliver lessons that are interesting and interactive while reinforcing learning objectives. Click here for Earth Day lessons!
Number Frames Overview Number Frames help students structure numbers to five, ten, twenty, and one hundred. Students use the frames to count, represent, compare, and compute with numbers in a particular range. The frames help students see quantities as equal groups of other quantities and in relation to benchmark quantities. This helps primary students move away from one-by-one counting toward more efficient ways of counting and computing. As students advance, custom frames can be constructed to help visualize factors, products, fractional parts and more.