Excellent science lesson plan for large classes "Exploration of Candles"

As a teacher, you often need to use lesson plans. Lesson plans are conducive to the improvement of teaching standards and the development of teaching and research activities. So do you know how to write a formal lesson plan? Below is the excellent science lesson plan "Exploration of Candles" that I compiled for large classes. Welcome to read and collect it. Excellent science lesson plan for large classes "Exploration of Candles" 1

Purpose:

1. Observe candles burning and discover many interesting phenomena.

2． Generate interest in observation and initially understand the relationship between combustion and air.

Preparation:

1. One "main candle".

2． Every two children share an operating table, and prepare a tray, two candles of the same size, two glass bottles of different sizes, two bowls, foam blocks, colored water, rags, etc.

Process:

Activity 1: Watch the candle burn

1. Initiate activities and organize children to discuss: How to fix candles? (For example, insert them on a foam block or in a small bottle.)

2. Inspire children to think: How to light candles?

3. Guide children to observe the lit candles and talk about the interesting phenomena they see, such as: the dripping candle oil is like tears and a bit hot; the flame will "dance" with the wind; the candle will produce a special smell when burning, etc.

Activity 2: Homemade candle flowers

1. The child holds a small burning candle and drops the candle oil into a bowl filled with water.

2． Observe the "candle flower in the water", talk about what it looks like, and find any strange phenomena. (It will float on the water like a lotus leaf and will not sink.)

　3. Try dripping candle oil onto black paper or blue cloth and see the difference.

Activity 3: The candle goes out

1. Ask the children to first fix two identical candles on foam blocks of the same size.

2． Ask the children to light the candles and cover the glass bottles respectively, observe and introduce the interesting phenomena they see, such as the bottle body becomes hot, there is water vapor on the bottle wall, the flame is slowly extinguished, etc. Encourage the children to discuss the reasons .

3. Ask the children to work in pairs, light two candles again, and then cover the two glass bottles, one large and one small, at the same time, observe the phenomenon of the candles extinguishing, and discuss the experimental results with each other.

Activity 4 Candles in the Water

1. Pour a shallow layer of colored water into the tray, then light the candle placed in the water, then cover the glass bottle, and guide the children to observe the phenomenon of the colored water outside the bottle entering the inner wall of the bottle after the candle is extinguished.

2． Guide children to discuss: Where does the water on the wall of this bottle come from? Why?

Suggestions:

1. The "main candle" provided in the material is lit by the teacher, and children can light small candles on the "main candle" to avoid using lighters or matches and other igniting tools to ensure safe operation.

2． When children explain mistakes, teachers should not correct them on the spot. They can guide children to discuss and encourage children to experiment again or search for relevant information before discussing.

3. This activity is suitable for district corners or group activities. Because air is invisible, intangible, and relatively abstract, activities should focus on guiding children to observe various phenomena and try to create opportunities for children to communicate. Excellent science lesson plan for large classes "Exploration of Candles" 2

Activity goals:

1. Guide children to discover interesting phenomena when candles burn, and cultivate children's good observation skills.

2. Understand the relationship between candle burning and air.

3. Cultivate children’s curiosity about things and be willing to boldly explore and experiment.

Activity preparation:

A lighter, one portion of paint water per person, two candles per person, two large and small glasses per person, and a bowl of water

Activity process:

1. Light candles.

1. (1) Teacher: There is a power outage at night and you can’t see anything. What should you do? (Light a candle, use a flashlight). Show the candle: Then how do you light the candle? ( lighter, matches). Then we should pay attention to safety when using lighters. The teacher explains how to light candles.

(2) Light the lighter first, then take the candle to the lighter and light it.

(3) Teacher: So, if you light the candle, please observe, what will happen?

(4) Children light the candle and observe.

2. The child returns to his seat.

Teacher: Just now, the candle was lit. What did you see? (There was water flowing out, there was smoke...). Oh, some children said that water flows out, and the water flowing out of the candle is called wax oil. Let’s see what happens to its flame? What is the role of wax oil?

Teacher summary: Candles burn When the wax oil drips on the table, it can play a fixed role. When it burns, it will smoke, and the flame will dance with the wind.

2. Homemade candle flowers.

Teacher: A child just said that wax oil drips when the candle burns. Please observe what happens when the wax oil drips into the water, and then drip it on the table. ; Source of this article: Qu; Teacher. Lesson Plan Network;

Children operate again to guide children to observe and discover.

Teacher’s summary: When wax oil drops in water, it floats like a lotus leaf.

3. The candle goes out.

1. Teacher: How did our teacher extinguish the candle just now? (Blow with mouth, fan with hand). Now, the teacher has a good way. First, light a candle, fix it, and then , I use a glass cup to cover the candle, and see what the result is. If I change the quilt, what will be the result?

Children operate by hand.

2. Teacher: We just did an experiment, what was the result? (The candle went out). So what’s the conclusion after changing the quilt? (It’s still extinguished), why?

Summary: The burning of a candle requires air. When the air in the quilt is burned out, the candle will be extinguished. , just like us people, we also need air. Without air, people will not survive.

3. Teacher: Okay, now let’s light a candle and cover it with a large and a small glass at the same time to see what the result will be? Experiment with young children.

Summary: There is more air in the big cup and will be extinguished later. There is less air in the small cup and it will be extinguished first.

4. Candles in the water.

Teacher: Just now, the candle was very happy playing games with air. Now it is going to play games with water. Do you want to see it?

Teacher Demonstration: First, light the candle Stand the candle in the middle of the basin and cover it with a quilt. You can find that when the candle goes out, the water in the dish will go into the quilt.

Children’s operation.

Teacher: Have you succeeded? Why does the water outside the bottle go into the bottle? You can take your plate to the guest teacher and ask the guest teacher why? You can also Go home and do this experiment with your parents, and then discuss the results.

Activity reflection:

The "Outline" points out that children are interested in things and phenomena around them, and have curiosity and thirst for knowledge. Children in the upper class are full of interest in scientific exploration activities, and candles are essential necessities in our daily lives. However, young children lack certain common sense about the use of candles. Even if there is a power outage at home, for the sake of safety, they usually It is lit and used by parents, but children are more interested in what happens to the candle after it is lit.