Beyond Sudoku, Part 2: Hashi and Hitori Puzzles

In a previous post, I shared instructions, tutorials, and links for introducing two types of Japanese number logic puzzles to your students: Kakuro and Futoshiki. Here are two additional types that are also less well known, along with tutorials and free resources you can use in your classroom. Hashiwokakero or Hashi o kakero means “building … Read more

Beyond Sudoku: Kakuro and Futoshiki

Teachers, if you cannot access the puzzles or tutorials, please contact your district about approving this website or access through a personal Gmail account. Even if you “request access,” some of the school servers block access. MESSAGE if you have a question! It’s been a couple of decades since Sudoku first appeared in newspapers in … Read more

Invention Impact / Unintended Consequences: A Critical-Thinking Activity

I didn’t expect to encounter Socrates in the book #Do Not Disturb: How I Ghosted My Cell Phone to Take Back My Life (affiliate link), but it brought back to mind a powerful critical thinking exercise that should be a part of every 21st-century curriculum. Apparently, the ancient Greek philosopher was worried that the invention … Read more