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5.Teaching aids
Candle a candle holder a big glass jar
a shallow dish some water a lighter
Teaching methods:
Discussion method, presentation method Task－based teaching method
Type of lesson : new lesson
Teaching steps
Step 1 Leading- in
Let students look at some pictures about experiments and tell them
today’s topic. Lesson 26 Keep the Candle Burning
设计意图：图片导入新课的话题，师生互动，激发学生的学习兴趣。创设轻松的学习氛围，开发学生们的学习最大潜能，从而使课堂最大有效化。
Step 2：pre-reading
Look at the pictures and learn the new words
Present the new words match candle holder shallow lighter examine oxygen use up be made up of one fifth
设计意图：利用教具和图片很直观的教给学生们新的词汇和短语，实物是的课堂更亲近化，有利于让学生深刻的记忆新知。
Step 3：presentation
1.Watch，Say and answer
(1)What do we need?
a candle，a candle holder，a big glass jar，a shallow dish，some water and a lighter.
(2)What do we do?
First，________ the candle ________ the candle holder.
Then ________ the candle holder ________ the dish.
Third ________ the dish ________ water.
Fourth，________ the candle.
Fifth，________ the candle ________ for two minutes.
2.Think about :What will happen?
3. Answer
1)Why did the candle stop burning
2)Why did the water rise?
3) How far dose the water rise? Why?