Pyramid or Prism?

In his book Everday Math a student looks at a drawing of a pyramid and has to match the word to the picture.My intention is to reinforce his knowledge and understanding of what a pyramid looks like. I think most of the confusion initially was in identifying with the actual words and distinguishing between the two: “prism and pyramid.” Where I think I have missed an opportunity is in his further inquiry into what a prism is. But, I can certainly revisit maybe some of this ambiguity surrounding a prism in the near future. And the irony is…come to think of it we have one right on our “science” table, which I recall him once looking through. If only I thought to have described it and had him search for it.