類似資料

• Problem solvers : shuffling a line
  著者:: Olson, Melfried
• Problem solvers : when will we reach one-half?
  著者:: Olson, Melfried
• Problem solvers : counting cubes, responses to the "shuffling a line" problem
  著者:: Olson, Melfried
• How many rectangles?
  著者:: Olson, Melfried, 等
• Problem solvers : what shapes can you make? responses to the "how many sandwiches?" problem
  著者:: Olson, Judith