spatial frame
1Math Puzzles and Brainteasers, Grades 6-8. Over 300 Puzzles that Teach Math and Problem-Solving Skills , Terry Stickels
Number puzzles, spatial/visual puzzles, cryptograms, Sudoku, Kokuro, logic puzzles, and word games like Frame Games are all a great way to teach math and problem-solving skills to elementary and… 1947.28 руб электронная книга
