1. Paper Engineering and Pop-ups
3D design with a 2D medium

2. Kinetic Energy & The Paper Engineer
The force at the center of all pop-ups is Kinetic energy, or the energy that is the result of motion.
Opening a page, pulling a tab, or turning a wheel
A paper engineer is an artist who makes 2D paper 3D by cutting and folding.

3. Pop-up: dimensional and movable paper books or greeting cards

4. Vocabulary
Angle: the shape made by 2 straight lines meeting at a common point, or two planes meeting along an edge
Acute Angle: an angle that is less than 90 degrees
Base page: the paper to which the pop-up is attached
Cam: a moving piece that gives an off-center rotation to another piece.

10. Now you have tried 27 pop-ups
Combine at least 5 to create an original pop-up design.