1. Perceive the changing law of alternating arrangement of three colors and continue to arrange.

2. Willing to participate in operational activities and experience the fun.

Second, the activity preparation

1, teaching aid: Little Sun smiling face, red, yellow and blue round cardboard.

2. School tools: operation cards and tricolor mushroom toys.

Third, the activity process

(A) collective learning, "small sun braid" into a topic.

1, to guide children to observe and perceive the changing law of alternating sorting of two colors.

(1) (showing the first and second braids)

Question: How many colors does this braid have?

In what order are they arranged?

What color comes first? What color is the back?

(2) found the law, and then go down.

(showing the third braid)

The question is the same as ①.

2. Guide children to observe and perceive the changing law of alternating arrangement of three colors and continue to arrange them.

(Show the fourth and fifth braids in turn)

"Xiao Sun wants to weave a more beautiful braid in three colors. Let's help it! "

Question: What are the three colors of this braid? In what order?

What color comes first? What color is in the middle? What's the last color?

What color should I draw next?

(2) Business activities

The rabbit got up early today. She wants to do one thing-grow mushrooms. Please help the rabbit plant these three different colors of mushrooms in the order of the first color, the middle color and the last color, just like braiding.

Fourth, the end of the activity

1, evaluation

2. Summary