Students will use an Open Number Line as a Math Tool. They will jump with the friendly Grasshopper as they decompose numbers to use them to add or subtract with. There are slides ready to model the concept with and then many slides to gradually release the learning concept to the students. A student response sheet is included that allows students the opportunity to share their understanding. There are also pages available for students to write their own word problems on and then solve them. This learning lesson can be used whole group, small group, independently, and at a station.