The castle building project includes instructions, a guided measurements chart for students to fill out, and a rubric for easy grading of math content and creativity. The project requires students to build a castle. The students must then find the area and perimeter of triangles, squares, rectangles, and circles. It also has students find the surface area and volume of cylinders and rectangular prisms. The students must include at least one of each of the shapes in their castle and perform measurements and calculations based on what they built. The project is great for middle school students or high school geometry students. It can be used as a long-term quarter project or an in class project that spans a few weeks. It's a fantastic way for students to connect math to the real world and appeals to kinesthetic and hands-on learners.