Checkered Trominos

This is one of designs in my upcoming book, Einstein Origami Paper Puzzles & Games.
A tromino is a polygon in the plane made of three squares
connected edge-to-edge. Each of the double sided checkered "I" and "V" shapes
is folded from a single duo-color square sheet of paper. The checkered
pattern looks the same on both sides of the model. Everyone, including
non-folders, can use multiple completed pieces to take on several tiling
challenges provided by the teacher in the class.