The goal of this hands-on math project is for students to understand volume. They will put all of the given cubes and rectangular prisms inside one big rectangular prism, fitting in perfectly without any gaps, calculate and compare their volumes, realizing that the sum of the volumes of the small inner figures equal the volume of the big outside figure, and view the right rectangular prism as decomposed into layers of arrays of cubes and other rectangular prisms. Please check out the preview vid