Whittlewud Wooden Math Board from 1-20, Learning to Count Wooden Developing Kids, learning numbers, Montessori Waldorf homeschooling, Number Matching Game, plywood Memory Game, wooden Pre-School Learning Resource, Montessori Ideas, math puzzle wooden Toy, Number Tracing & Counting Board, Number Counting Puzzle Tiles, paired math puzzles. Paired domino puzzles "Numbers and Counting". From the age of the child, only learned to combine parts into a whole, to learning to count from 1-20.