Posting a Peg · Beadbar

Safety

The peg must not fit the small parts test cylinder (1.25 in. wide × 2.25 in. deep); a peg at least 3.5 cm (1.4 in.) across does not fit, whatever its length.
Check the edge of the hole and the ends of the peg for splinters.
When a mallet is added, the adult stays within arm's reach and the mallet stays on the tray.

1
Carry the box to the infant and sit beside them. Place the box in front of them with the peg beside it.
2
Pick up the peg and hold it upright above the hole, so the infant sees the round end line up with the round hole.
3
Lower the peg into the hole slowly and push it with your fingertips until it drops inside. The peg sliding through the hole is the point of interest.
4
Reach into the open front, take the peg out, and set it beside the box.
5
Post the peg once more at the same speed, then set it down and take your hands away.
6
Let the infant try. If they hold the peg sideways over the hole, wait; do not turn it for them. If they stop trying after several attempts, show the upright hold once more without words.
7
When the infant stops, return the peg and box to the shelf.

Box with a tighter hole, so the peg must be pushed firmly
Box with two or three holes and one peg for each
Peg that is tapped down through a hole with a small wooden mallet (from about 15 months)

The peg goes in only when it is upright and centered over the hole.

The step from the ball to the peg adds one difficulty: the peg fits only one way.