Henri Picciotto

• Zome Geometry
• Geometry labs
• National Puzzlers' League Cryptic Crosswords
• Supertangram Activities 1 (Book 1)
• Supertangram Activities 2 (Book 2)
• Supertangrams for beginners
• Lab gear activities for Algebra I (The algebra lab)
• Out of Left Field: Sixty Cryptic Crosswords
• Pentomino activities
• Pentomino activities, lessons and puzzles
• Pentomino lessons
• Polyomino lessons