Fractions Decimals and Percents puzzles! - If you put it on a clear plastic square, the picture on the back will be complete. (I guess I would need 2 pieces of plastic for each puzzle, solve on one side sandwich with second piece, and flip!
Human Body: Learning About the Heart Evaluate students learning about blood flow away from the heart and to the heart using blue and red yarn
Planet Flip Book This would be great for learning about the planets if you put facts about the planets on the inside.
Using LEGO to Build Math Concepts. Source here Adding Machine. Source here Creating Math Patterns with Golf Tees. Tutorial from here Counting on Fingers.