1) Rook mazes for beginners. After Dr. Root gave a sample maze on the demonstration board, students set up a mazes for each other then captured each chessman in the maze with a rook. From Science, Math, Checkmate: 32 Chess Activities for Inquiry and Problem Solving.
2) Two-rook checkmate for intermediates. This lesson plan is in Children and Chess: A Guide for Educators. Tested to make sure children learned this checkmate. About half were tested and the rest can be tested next week.
3) En passant rule and set up a "White to move and en passant for checkmate" position for advanced group. This “Create a Checkmate” lesson plan is from Science, Math, Checkmate: 32 Chess Activities for Inquiry and Problem Solving.