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How to design a science education activity to collect the leaves of the middle class?
Make a ppt document yourself first

Play it to children with multimedia.

Teach children about leaves,

Know the leaves and teach them from their colors and shapes, such as:

Leaves are fan-shaped, heart-shaped, strip-shaped and round. Some leaves have heart-shaped veins; Their colors are beautiful, such as bright red, golden yellow, green red and yellow green. They have weeping willow leaves and ginkgo gardens. ...

When children fully understand,

Then take the children out to collect them.

There are many methods of collection, such as:

You can put the leaves in two pieces of hard paper, flatten them and put them in a sunny place, so that the leaves can be quickly dehydrated and preserved. Your leaves must have high water content, just put them in the book! In addition, you can also choose books with general writing paper to clip, and don't choose books with coated paper and double-sided tape! In other words, don't choose books with smooth pages! !