Activity objectives:

Try to sort according to the whole case, and don't be disturbed by color, shape and size.

Through observation and comparison, the operation activities are carried out by using coloring skills.

Willing to participate in operational activities, willing to talk while operating.

Activity preparation:

Experience: Children have experience and basic skills in coloring.

Material preparation: PPT courseware, homework sheet and crayons.

The story is imported, and the AB arrangement pattern is found through pictures. Show pictures of the ocean and small fish.

Teacher: There is a bubble spitting contest in the sea today. Many small fish compete together! They have to compete with who blows the most beautiful bubbles!

Show pictures of small blue fish and small yellow croaker spitting bubbles (blank bubbles without color).

Teacher: What are the bubbles that the little blue fish spit out? Where's the little yellow croaker?

Please take out the clown fish (colored bubbles arranged in AB style).

Teacher: Clownfish is here, too. It wants to take part in the bubble-spitting competition. What are the bubbles that clown fish spit out? What did you find?

By comparison, we can find the law of AB arrangement pattern to help small fish.

Teacher's summary

Teacher: The bubbles spit out by clown fish have two colors, one is blue, the other is yellow, and the other is blue and yellow. This is the so-called AB arrangement mode. It turns out that clown fish learned this skill just to spit out the most beautiful bubbles.