Science lesson plan paper in kindergarten middle class blooms 1 activity goal:
1. The perception of different phenomena of different papers blooming in water is related to the water absorption of papers.
2. By guessing, trying, analyzing and expressing, we can find the reason why paper flowers bloom in water.
3. Actively participate in inquiry activities and have a strong interest in the phenomenon of paper flowers blooming in water.
Activity preparation:
1. Experience preparation: Children know that flowers that grow on trees and grass will bloom.
2. Material preparation: small flowers made of tissue paper, handmade paper, white paper, newspaper and tin foil paper; There is a big basin on each table.
Focus of activities:
Understand that the different phenomena of different paper flowers blooming in water are related to the water absorption of paper.
Activity difficulty:
Can guess, analyze and infer the reasons that affect the flowering of paper flowers in water from different paper types.
Activity flow:
First, video import, set suspense
Teacher: Today, the teacher brought a video. Let's have a look.
Q: What do you see?
Second, perceive the phenomenon of different paper flowers blooming in water.
(1) Observe the phenomenon of white paper flowers blooming in the water.
1. Question: This is an ordinary blank sheet of paper. Can the flowers made of it bloom?
2. The teacher demonstrates the blooming of paper flowers and the children observe.
3. Ask individual children to try the operation.
(2) Explore the flowering phenomenon of different paper flowers in water.
1. Introduce various materials.
Question: Apart from white paper, what different kinds of paper do children only know?
The teacher told the children to show different test papers and stick them on the record sheet.
Children guess whether different paper flowers can bloom in the water.
4. The teacher puts forward the operation requirements, and the child operates for the first time.
5. Teacher-child discussion: What flowers did you find? Which ones don't open? Why?
The teacher concluded: Some paper flowers can bloom in water, while others can't. This is related to whether the paper can absorb water. It will rot if it absorbs water too quickly, and it won't open if it doesn't absorb water.
(3) The perception of the speed of paper water bloom is related to the speed of paper water absorption.
1. Question: Are these paper flowers open at the same time?
2. The teacher puts forward operation requirements and demonstrates standardized operation actions.
3. The child operates for the second time, and the teacher observes and guides.
4. Communication: What kind of paper blooms fastest? What kind of paper blooms slowest? Why?
Teacher's summary: Different paper absorbs water at different speeds. If you absorb water quickly, you will drive fast, and if you absorb water slowly, you will drive slowly.
Third, end the extension.
How beautiful our flowers are! There are still some papers in life, such as kraft paper, cellophane and so on. Children can carefully look for those papers and make them with their parents to see if the flowers can bloom, ok?
Kindergarten junior high school science lesson plan paper flowers bloom 2 [activity goal]
1. Through the observation and comparison of different textures of paper, let children feel the characteristics of paper and the strength of water absorption.
2. Enrich children's life experience and cultivate their hands-on operation and experimental ability.
[Activity preparation]
Tissue paper, picture paper, wrapping paper, handmade paper, white paper, newspaper, rice paper, sugar paper, tin foil, basin, water and sand.
[Activity Flow]
Query activity 1
Question: Can paper flowers bloom?
Children's discussion.
(1) can't be opened. Paper flowers are fake flowers and can't be opened.
It can bloom, because if we water the flowers, they will bloom.
Try it: where can I open paper flowers?
Children put paper flowers in soil and water for observation.
(1) Put the paper flowers in the soil.
(2) Put the paper flowers into the water.
Tell me what I found.
(1) Paper flowers bloom in water.
(2) Small paper flowers will not open if they are too dry; Real flowers can bloom in the soil, but fake flowers can't.
Survey activity 2
Question: Put paper flowers with different textures (wrapping paper, handmade paper, drawing paper, newspaper, facial tissue, rice paper, sugar paper and tin paper) into water, which one will bloom faster?
Children's discussion.
Paper flowers with a thickness of (1) bloom quickly.
(2) Paper flowers made of newspapers, facial tissues and rice paper bloom fast.
Try it: What kind of paper flowers bloom fast? What kind of flowers bloom slowly?
The children put paper flowers of various materials into the water at the same time and observe them carefully.
Tell me what I found.
(1) Flowers made of wrapping paper, handmade paper and picture paper are slowly blooming.
(2) Newspapers, facial tissues and rice paper bloom quickly.
(3) The flowers made of facial tissue are the fastest, and the flowers made of wrapping paper are the slowest.
(4) Flowers made of sugar paper and tin foil did not bloom.
(5) Tissue paper absorbs water fastest and wrapping paper absorbs water slowest.
Play, my flowers are blooming.
Put paper flowers of different colors in the flowers and lead the children to water the flowers with watering pots. Paper flowers gradually open and experience the joy of blooming.
Matters needing attention
1. Teachers should make full preparations before the experiment.
2. If the kindergarten conditions are good, children can carry out activities in groups, so that children can feel the experience and draw conclusions in the process of giving full play, and it is also convenient for teachers to guide children with different abilities.
It's best to let the children roll up their sleeves and bring an apron to avoid getting wet.
Expand ideas
1. Will colored water climb up along the stick?
Put colored water (about 2 cm high) into two beakers respectively, and put one end of the roll paper stick and the plastic stick (or glass stick) into the colored water in two beakers respectively, and observe the results.
2. Among raincoats, umbrellas, windows, shoes, cups, towels, clothes and rags, which ones absorb water and which ones don't, what role do they play in our lives?