This resource provides a comprehensive exploration of calculating the volume of rectangular prisms. It includes a series of problems asking students to find the volume of various prisms based on given dimensions, represented by layers of unit cubes. Additionally, students are introduced to different methods of measuring volume, such as counting unit cubes or multiplying dimensions. The material offers practice questions for calculating volumes based on specified layers and grid dimensions, as well as challenges involving sandboxes to enhance understanding of volume in practical scenarios. The aim is to develop a strong grasp of volumetric calculations.