Scientific activities in large classes: the secret teaching plan of sound

As a teaching worker, we often have to write an excellent teaching plan. With the help of teaching plans, the teaching quality can be improved and the expected teaching effect can be achieved. Come and refer to the lesson plan you need! The following is a major scientific activity organized by me: the secret teaching plan of sound. Welcome to read, I hope you will like it.

Science activities in large classes: the secret lesson plan of sound 1 activity objectives:

1, understand the sound generation, and you can freely choose the material to explore the sound.

2. Stimulate children's desire to explore further by discussing the role of sound.

Activity preparation:

1, experience preparation: children have certain ability to make experimental records.

2. Physical preparation: video recorder, stereo, PPT courseware, drum, sandpaper (one for each person), beans, cotton, glasses, chopsticks (three in each group), water (four measuring cups), towels (several pieces) and watercolor pens (four pieces).

Activity flow:

First, the situation import:

1, play PPT, and let the children guess three sounds: thunder, heartbeat and wooden door, thus leading to the theme of "sound".

2. Discussion: There are many voices in life. How did they come into being? (guess)

Second, let the children understand the generation of sound through experiments-objects vibrate to produce sound.

1. Knock on the drum full of beans and let the children observe and discuss how the sound is made.

Summary: Objects will make sounds when they collide and vibrate.

2. Let the children try to make sound with sandpaper, feel its vibration and discuss how the sound is made.

Summary: When objects rub and vibrate with each other, they will make a sound.

3. Discussion: The two experiments found that the sounds were similar.

Summary: Objects vibrate to make sounds.

4. Extension: If you don't want the object to make a sound, then the object will stop vibrating.

Third, ask children to choose materials freely, so as to explore the differences in sound.

1, show three cups, and guess: how to knock three cups separately, and how to make them make different sounds?

2, children hands-on experiment verification, find out the rules found in the experiment, and record the experimental results in the record table.

3. Each group of children sends a representative to tell the results of the group experiment. Play soft and soothing music.

4. Extension: Tell the feelings when listening to music and noise, let the children know that noise is harmful to their health, and guide them to speak softly and play with toys, and don't make noise.

Fourth, discuss the role of sound to stimulate children's desire for further exploration.

1. Discussion: What other important roles does sound play in life?

2. Watch PPT to get a preliminary understanding of the following functions of sound:

(1) Distinguish familiar people.

(2) Pick watermelons.

(3) Take a stethoscope to see a doctor.

3. Ask the children to go home to collect relevant information and share it with you.

Scientific activities in large classes: the secret of reasonable teaching plans 2. Activity objectives

1, can freely choose materials to explore sound, know that sound is produced by object vibration, and can perceive the amplitude and frequency of object vibration.

2. Distinguish between music and noise, and form a good habit of speaking softly.

3. Stimulate children's interest in exploring the world around them through various attempts and operational activities.

4. Cultivate children's curiosity about things and be willing to explore and experiment boldly.

5. Stimulate children's interest in scientific activities.

Important and difficult activities

Activity focus: Through the exploration of sound, we know that sound is produced by the vibration of objects.

Activity difficulty: perceive the amplitude and frequency of object vibration through the game.

Activities to be prepared

1, drums, sand balls and other musical instruments, mineral water bottles, homemade guitars and other items that can make sounds;

2, the experience of sound reserve, learn the song "Millet on the Drum".

3. Background music.

Activity process

1. Create a scene and import a theme.

The teacher leads the children into the kingdom of sound, telling them that we are here to find the secret of sound and stimulate their desire to explore.

2. Free exploration, communication and discussion.

(1) Invite children to have a concert in the kingdom of sound.

Activity requirements: Play according to the teacher's instruction, and make a fist to indicate the end. What did you see or feel when you played such a beautiful sound?

(2) Children can freely discuss their feelings.

(3) Find the problem and feel it again.

Ask individual children to come up and talk about their feelings, and ask them to come back and play music and feel whether they are like other children.

(4) Summary: Tell children that these feelings are all vibrations, so as to draw the conclusion that sound is produced by the vibration of objects.

3. Perceive the amplitude and frequency of object vibration.

(1) Show the rice grains and put them on the drum. Let children find ways to make rice grains dance on the drum by using the scientific principle that vibration produces sound that they have just learned. Guide the children to beat the drum, and the rice grains on the drum will dance as soon as they vibrate. The heavy rice grains will jump high and the light rice grains will jump to the bottom.

(2) Children sing with drums to feel the amplitude and frequency of vibration.

A, children feel the vibration of the throat.

B, baby sings loudly when snare drum hits again, and baby sings softly when snare drum taps. At the same time, touch your throat with your hand and feel the amplitude and frequency of vibration.

4. By comparing the above two effects, we can understand music and noise and cultivate the habit of speaking softly.

5. End: In the beautiful music, the children chatted softly and talked about what skills they learned today.

Activity reflection

In the activities, teachers can design tentative, operational and exploratory scientific learning activities according to children's age characteristics and interests. The whole activity is novel and creative in content, flexible in organizational form, and can be improvised. Moreover, in teaching activities, the teacher is only a guide and organizer, and does not need too many demonstrations to make children become real masters in the activities. This activity improves children's thinking flexibility and hands-on operation ability, and also cultivates children's learning attitude of bold exploration and active attempt.