Printable lessons for math class

Ceth Barry at Washington Elementary School looks over his notes while a rectangular prism he designed prints on the 3D printer. Press photos by Kate Hayden

Jonah DeVore shows off the shape he made, a bunny, which turned into a learning experience for DeVore and his teacher, Clarissa Mathews.

Second grade teacher Clarissa Mathews pulls out Ceth Barry's prism from the 3D printing machine after it finishes the shape.

Ceth Barry shows off the shape he designed: a rectangular prism with a small hole and his initials, C.B., on one side.