This math topic practices calculating the surface area of rectangular prisms, specifically focused on identifying the number of blocks within the prism that have exactly two outside faces. It includes various dimensions of rectangular prisms to vary the challenge, and learners have to select the correct count of such blocks from multiple choices. The problems are part of a larger unit on learning the surface area of 3-dimensional shapes, offering foundational geometry skills for understanding more complex geometric calculations. The worksheet contains visual aids to assist in visualizing the 3D shapes and their exposed surface blocks.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.