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2. Some words and phrases: match, light, burn, use up
Teaching difficult points
1. Enable the students to describe the experiment-Keep the Candle Burning.
2. Some difficult sentences:
Fill the dish half full of water.
As the candle burns, it uses up oxygen in the air.
There is about one-fifth oxygen in the air, so the water rises and fills about one-fifth of the jar.
Teaching methods
Task-based teaching; discussion; practice; listening
Teaching tools
A audiotape; a multiple-media computer and a projector
Teaching procedures
Step 1: Organization
First the teacher greets students "Good afternoon, class!"
Step 2: Lead in
Listen to the a song and find the title of this lesson.
Step 3: Warming up
T: Boys and girls, today, we will have an interesting day. Can you guess what we will do with these things ?
S: I think we are going to do an experiment.
T: Why do you think so ?
S: Because I saw some thing that may be used in an experiment.
T: Good, that's it. Before the experiment I have some questions for you.
1Do you think science is interesting? Why or why not?
2Name one or two famous scientists, and say something about them.
3What will happen if you put a jar upside down over a burning candle?
Then show them something about Einstein and Yuan Longping.
Step 4: Listening and watching
First , ask the students what we need to do the experiment and show them the pictures. Do an experiment. Show the procedures of the experiment to the students. Ask the students to make observation, and remember the whole experiment procedures.
Step5: Challenge memory
Can you guess?