Activity objectives:

1. Learn about some plants with special characteristics in nature during the demo activity.

2. Knowing the close relationship between plants and human beings can boldly express the collected interesting information in words.

3. Take an active part in scientific activities and be willing to explore.

Activity preparation:

Experience preparation: collect pictures, photos and related materials of exotic plants.

Played music games, butterflies looking for flowers.

Material preparation: a pot of mimosa, a pot of anti-theft grass and four pots of pitcher plants, courseware (with dubbing pictures of various flowers and plants. )

Activity flow:

First, games stimulate children's interest.

1, teacher: "The program of the knowledge tree has started again. Our slogan is:' The tree of wisdom is full of wisdom, and it is fun for you and me to play games under and in front of it. Hello, children, welcome to the wisdom tree paradise. "Yes!" (Teacher and children say together) What's today's program? Let's take a look. "Arouse the interest of young children.

2. Play relevant courseware to describe the characteristics of plants.

3. Q: Do you know them? You know what's strange about them? Where does it usually grow?

Second, try to explore freely.

1, mimosa, burglarproof grass. Children go and have a look, touch and make full use of their senses-the peculiar characteristics of plants such as sight, hearing, smell and touch.

2, around the problem, exchange findings. Children in groups of four, taking mimosa and burglarproof grass as examples, tell the external characteristics of plants in words.

4. Guide the children to talk about: How does the mimosa change? What's it like to touch the burglarproof grass?

Teacher's summary:

Mimosa: Also called induced grass, the leaves of this plant will close and droop immediately when touched lightly, showing shame.

Anti-theft grass is also called plant cat. When people come into contact with animals such as pigs, sheep, birds, cows and horses, the contact area will be as painful and itchy as being burned by electric shock. Hay is placed around the granary, and mice run away when they touch it, so it is also called "planting cats".

5. Expand children's understanding of exotic flowers and plants.

Show pictures, photos or related materials of exotic plants collected by yourself and introduce them to our group. Guide the children to introduce from the following aspects: What's the name of the plant? ※? What's so strange? Where does it grow?

Choose 1-2 children from each group and introduce the strangest plants they brought in front of the group. ※.

Third, the operating experience

1, a pot of pitcher plants, several bottled bugs in each group.

2. Requirements: Pour the insects in the bottle into the insect trap and feel the strange characteristics of Nepenthes.

3. Instructions: Use charts to guide children to observe and record the predation process of Nepenthes.

4. Introduction by representatives of each group.

The teacher concluded: Nepenthes is like a colorful bottle. There is sweet and fragrant honey in the bottle. Flies fly and fall into the bottom of the bottle. The bottle was so slippery that the fly was eaten by the pig dragon grass when it couldn't climb up.

Fourth, the game: butterflies look for flowers.

Play the music "Become a Butterfly". When the butterfly is still, you can gently touch the leaves of the plants and feel the strangeness of flowers and plants with close contact with body language. The teacher paused the music according to the situation. )

Verb (abbreviation for verb) is an extension of activity.

There are pictures of Venus flytrap, Scutellaria barbata, flowers and other plants in the exploration area, so that children can observe and communicate and further cultivate their interest in plants. ※.

Go home and search the internet with my parents to expand my knowledge of plants. ※.

Teacher reference materials:

There are nectaries in the insect traps of Nepenthes, which can secrete nectar to attract insects. After insects enter the insect trap, the cover of the insect trap is not closed as people think, but the inner wall of the insect trap is smooth, so the insects can be prevented from climbing out. There is often half water in the bag. When there is too much water, the tendrils can't bear the load and will automatically tilt and pour some water. Because if the bag is full of water, insects can easily escape after falling into the water. The inner wall of the lower half of the insect trap is slightly thicker, and there are many digestive glands, which secrete slightly viscous digestive juice and store it at the bottom of the insect trap. The digestive juice is acidic and has the ability to digest insects. In fact, the main purpose of opening the capsule cover is to attract insects, because there are also many nectaries on the inner wall of the capsule cover. Most of the insects falling into the bag are ants, and there are some flying insects such as wild flies and mosquitoes.