Extension work can be one of the more dynamic parts of a Montessori classroom. With these extension cards, students take the vocabulary learned or the basic concept and elaborate, take it further and add some critical thinking components to it. Each card has customized suggestions for extensions for that particular lesson. We tell the students that these are just some ideas to get their juices flowing- we love it when they come up with their own extension ideas. We made this product editable so that you could change or substitute lessons, ideas or books for those that you have in your classroom!