This price is a steal. If you are familiar with Engage NY Math Modules, there is a "Concept Development" section where the teacher modules different problems before allowing the students to try the problem set independently. Fractions can be difficult to teach, which is why I made this Smartboard lesson. I feel the students love watching the Concept Development section more when I use the Smartboard. Each lesson has the problems for the concept development already made and can be easily used. This price will not stay, I want everyone on Teacherspayteachers to see my work and how long I spent on it, which is why it's only two dollars right now. In two weeks, it will go up to ten.