The first step is to prepare all the materials. Familiar with materials: 4 pieces of whole jigsaw puzzle, 2 pieces with one side sunken.

The second step is to put a whole jigsaw puzzle in the palm of your hand and erect a whole jigsaw puzzle on both sides of the jigsaw puzzle. For the sake of demonstration, only a whole jigsaw puzzle is erected in the picture.

The third step, as shown in the figure, is to erect two whole jigsaw puzzles in order to place the two jigsaw puzzles with the concave side upward.

The fourth step, the result is as shown in the figure. Because one side of the depression is arched, it is convenient for the last whole puzzle to enter.

Step 5, as shown in the figure, get a complete ball.

Extended data:

Educational toys, whether children's or adults', as the name implies, are toys that can allow us to develop our intelligence and increase our wisdom in the process of playing.

Educational toys should be divided into children's educational toys and adults' educational toys. Although the boundary between them is not very obvious, they should be distinguished. The so-called educational toys, whether children's or adults', are all toys that allow us to develop our intelligence and increase our wisdom in the process of playing.

Ball: 6-month-old babies are interested in everything that can move. Colored balls that can roll are the most attractive to them. When you push the ball with your hand, it will roll forward. Babies will crawl and chase the ball. It would be even better if their mother could play with them.

Children's toys-growing partners, eternal themes, intellectual toys. Develop children's intelligence, exercise children's ability to use their hands and brains, and give them an indelible happy childhood. Educational toys, as the name implies, are toys that allow children to develop their intelligence while playing. The incidence of people who play educational toys since childhood is less than that of the general population 1%%.

References:

Baidu encyclopedia-educational toys