What stone bridge is the second grade? How to fill in the blanks?

1, one-hole stone bridge

2. A stone bridge

3. Single arch stone bridge

4. A stone bridge

5. Curved stone bridge

6. A row of stone bridges

Don't isolate quantifiers

When teaching children quantifiers, we should combine numbers and put them in specific situations for children to understand and avoid teaching them in isolation. It is difficult to understand just by teaching children quantifiers, because quantifiers are too abstract. Only under certain circumstances can children understand them quickly. Of course, the difficulty should be acceptable to children.

For example, when children play with toys, tell them a building block, a car, etc. Let children understand the meaning of quantifiers in sentences according to the specific environment and learn to use them correctly.