Those little sticks are used for counting. For example, you have an addition problem: 2+3=? Then, you can take two sticks and three more, let the children count how many sticks they have and teach them to calculate the answer in this way. The same is true for subtraction problems.

Disks and squares also have such uses.

In addition, disks and squares are mainly used to let children know about graphics. You should tell him that the disc is round, the four sides of a square are squares, and so on. ...