In numerical order, the number one is the basis, the number two is based on the number one, the dark part in Figure 2 is based on Figure 1, and so on. The specific operation is as follows:

1, based on 1, and No.2 was established on the basis of 1 ..

2. The dark part in Figure 2 is established in Figure 1, and so on.

3. Each surface of building blocks is generally decorated with letters or pictures.

4. Allow different arrangements or construction activities.

Building blocks can develop children's intelligence and can be assembled into houses and various animals.

6. Water toys play a great role in children's intellectual development.

Extended data:

Building block toys are usually cubic wooden or plastic solid toys, and each surface is generally decorated with letters or pictures, allowing different arrangements or building activities. Building blocks have various styles, which can develop children's intelligence and can be assembled into houses and various animals.

Building block toys play a great role in children's intellectual development and are also a way to improve children's hand-eye coordination. There are many ways to play building block toys, which can be arranged, spliced, round and symmetrical, which is helpful to children's intelligence. When playing with building blocks, it is important to let children participate in the problems of proportion and symmetry, which is of great significance to the early cultivation of children's arithmetic.