Helpful video links below from Virtual Nerd:
Volume of Rectangular Prism
http://psn.virtualnerd.com/viewtutorial/PreAlg_11_01_0019
Volume of Triangular Prism
http://psn.virtualnerd.com/viewtutorial/PreAlg_11_01_0020
Volume of a Cylinder
http://mmu.virtualnerd.com/viewtutorial/PreAlg_11_03_0009
CCSS: Solve real-life and mathematical problems involving angle measure, area, surface area, and volume.
4. Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle. 6. Solve real-world and mathematical problems involving area, volume and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms.