This book has 37 reproducible Pentomino puzzle outlines, arranged in order of difficulty, with solutions.  The puzzles at the beginning of the book can easily be solved by students in the lower grades.  The puzzles near the end of the book would be challenging to 12th graders.

One Pentomino Set (Twelve plastic scored 5-square inch pieces).  Excellent tool for teaching area and perimeter. 

Rainbow Pentominoes (Six sets in six colors)   

P13

P11

P12