Safety

  • Each disc must not fit the small parts test cylinder (1.25 in. wide × 2.25 in. deep); discs at least 5 cm (2 in.) across do not fit. Do not use real coins or bottle caps, which do fit.
  • Check disc edges for splinters and count the discs in and out so a missing one is found.

Presentation

  1. 1

    Carry the tray to the table and sit beside the child, with the slot running left to right in front of them and the discs in the bowl.

  2. 2

    Pick up one disc by its edge with your thumb and fingers.

  3. 3

    Turn your wrist slowly so the disc stands on its edge in line with the slot. This wrist turn is the difficulty isolated in this work.

  4. 4

    Lower the disc into the slot and push it until it drops. Pause.

  5. 5

    Post a second disc the same way. Then invite the child to post the rest.

  6. 6

    When all the discs are in, open the drawer, take them out one at a time, and put them in the bowl.

  7. 7

    Return the tray to the shelf.

Extensions, easiest to hardest

  1. Box with the slot turned to run front to back, which needs a different wrist turn
  2. Box with two slots at different angles
  3. Thinner discs with a narrower slot, each disc still at least 5 cm across

Control of error

A disc that is not turned in line with the slot will not go in.

Ready to move on when the child…

  • Turns each disc to line up with the slot before bringing it down
  • Posts all the discs without help
  • Takes the discs out and returns them to the bowl

Try “pink tower”, “tummy”, “diaper”, “grace and courtesy”, or “October”.