"More Small Animals" looks for animals and plants on campus PPT courseware

Description

"More Small Animals" looks for animals and plants on campus PPT courseware

think about it

Do you know those little animals?

Tell us about your favorite animal

Comparing eyesight

1. Carefully observe the small animals below, compare them with ants, and put small animals similar in appearance to ants together with ants.

Insects

An animal like an ant has a body divided into three parts: head, thorax, and abdomen. There is a pair of antennae on the head and three pairs of legs on the thorax. Animals with such characteristics are called insects.

Insects are divided into beneficial insects and pests.

Beneficial insects refer to animals (mostly insects) that are beneficial to humans in some aspects, such as dragonflies, bees, seven-spotted ladybugs, etc.

Pests refer to animals (mostly insects) that have a negative impact on human life and production, such as flies, cockroaches, locusts, termites, etc.

Not all beneficial or pest insects are insects. Spiders are beneficial insects, but they are not insects. Centipedes are pests, but not insects.

Summarize

What did you learn from studying this lesson?

after class homework

1. Search for some pictures of other animals, observe them carefully and try to classify them.

2. Observe the small animals around you and write an observation diary.

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"More Small Animals" Looking for Animals and Plants on Campus PPT Courseware 2:

"More Small Animals" Looking for Animals and Plants on Campus PPT Courseware 2 What are the physical characteristics of ants? Physical characteristics of ants: The body is divided into three parts: head, thorax and abdomen. The head has a pair of antennae and the thorax has three pairs of legs. Compare your eyesight and carefully observe these small animals to see which ones...

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Update Time: 2024-11-22

This template belongs to science courseware E-education edition fourth grade science volume 1 industry PPT template

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