Science open class lesson plan "Wonderful Water" for large classes

Cultivate children’s hands-on ability and ability to explore things through their observation and experiments. Stimulate children's curiosity and desire for knowledge. The following is the lesson plan "Wonderful Water" that I compiled for everyone in the open science class for large classes. You are welcome to read it. Please pay attention to more exciting content.

1. The goals of the "Outline" and the national "Science" curriculum completed in this activity are:

1. Cultivate children's hands-on operations through children's observation and experiments. Ability and ability to explore things. Stimulate children's curiosity and desire for knowledge.

2. Encourage children to use appropriate methods to express and communicate the process and results of exploration.

2. Demonstration plan

Scientific activity "Wonderful Water"

(1) Activity goals:

1. Through different The changes in water can cultivate children's interest in scientific phenomena and germinate their initial desire to explore.

2. Cultivate children’s hands-on ability during their experiments.

3. Be willing to express the phenomena you see in your own language and be willing to communicate with your peers.

(2) Activity preparation: two cups of red water, one cup of transparent water, white sugar. Small spoon (each child has one copy of this material)

(3) Activity process:

(4) Activity process:

1. Take a look and think A thought

Conversation topic: "Children, look, what does the teacher have in his hand? Ask the children to think about it, what will happen if the teacher pours the red water in his hand into the transparent water? ?” (The teacher pours the pre-mixed red saturated sugar water into the transparent water and asks the children to carefully observe what happens? In order to facilitate the observation of the children, a piece of white paper is lined behind the transparent cup. The children can see The red water sinks to the bottom of the transparent water and forms two layers, which is very beautiful)

2. Give it a try:

Introduction: "Children, you want to do something nice like this. "Water? Now please try it with the water on the table and see if you can make such wonderful water." (The teacher provides the children with a cup of transparent water and a cup of red water, and asks the children to pour one. Pour and see if you can pour out two layers of water)

3. Talk about it:

Introduction: Children, have you made good-looking water? Talk to the teacher. Is the water made the same? (The teacher asks the children to boldly tell the methods and results of their experiments) Introduction: "Children, do you know why your water can't look as good as the teacher's? Please take a look at the teacher's red water and the child's red water. What’s different about the water?” Please observe carefully: the children’s water is very thin. The teacher's water is very thick, like honey, sticky. (Source of the lesson plan: Teacher Qu’s lesson plan website) Tell the children: "Because the teacher added a lot of sugar to the water, so much sugar melted in the water, and the water became heavier. And heavy things will sink to the bottom. So the red water will be at the bottom, and the transparent water will become two layers."

4. Do this:

Ask the children to use something on their table (a cup of red. of water and sugar, a glass of clear water) to make wonderful water. The teacher instructs the children to put the sugar into a transparent cup with a small spoon, emphasizing that more sugar must be added until the sugar cannot melt in the water. Slowly pour the red water with white sugar into the transparent water, and ask the children to observe carefully. Have the wonderful water been made?

(5) Activity evaluation:

The science activity "Wonderful Water" is very suitable for children in the upper class. Children in the upper class are very curious and would like to have the opportunity to make things they like. This activity is not difficult, but the results are easy to see, allowing children to strengthen their self-confidence through successful results. Through this activity, children's observation, comparison and hands-on operation abilities have been developed to a certain extent, and their language expression ability has been greatly improved.