Remember, 3d shapes have faces (the flat parts), vertices (the corners) and edges (these join the faces together). 3d shapes are 3 dimentional, that means you can pick them up and turn them around. Can you remember the difference between a pyramid and a prism ? (A pyramid narrows to a point. A prism is the same width the whole way through, like if you slice a loaf of bread.)
See if you can complete the sheet below, then try and find 3 things in your house that match each of the shapes.
Be sure to send me pictures of what you find.