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Authoritative PPT Summary
"Leaves of Plants" Plant PPT Courseware
I already know:
(1) Our group has a total of _____ leaf babies.
(2) There are ___ kinds of leaves, and we classify them according to their _____.
Do you have the same type of foliage in your group? What did you observe that said they were the same kind of leaves?
Activity 1: Observe leaf babies
Kind tips:
1. First observe the leaves you prepared with your eyes. What do you see?
2. Use a magnifying glass to observe these leaves again. What did you find?
3. Complete the experiment record sheet.
4. Clap your hands after completing the record sheet.
Activity 2: Growth changes of leaves
Kind tips:
1. Open the activity three information package.
2. Observe the branches in the information bag and tell the group what kind of leaves you see?
3. Select representatives to report.
4. Clap your hands after the discussion.
test you
1. The leaves of plants are generally composed of ____ and ____, and there are ____ on the leaves.
2. Leaves also have ____. The leaves start growing from ____, and finally age and die, completing their lives.
What we gained:
1. The leaves of trees are diverse, and the leaves of the same tree have common basic characteristics.
2. The leaves of plants are generally composed of blades and petioles, with veins on the leaves.
3. Leaves are also alive. They grow from leaf buds and eventually age and die, completing their lives.
Leaf buds → small leaves → young leaves → mature leaves → old leaves → withered leaves → fallen leaves
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