Module5 A Lesson in a Lab教案
magnesium, aluminium and zinc.
4. does iron have a slow or fast reaction with steam?
it has a slow reaction.
5. does copper react with water?
no, it doesn’t.
passage b
t: well, from passage a we can see how interesting the experiment about the reaction of metals is! but do you know how we can carry out a chemical experiment in a lab successfully? and what is the correct order to describe a scientific experiment?
ask the ss to look at activity 1 on page 44 and give them about 2 minutes to discuss it. then collect the answers from them. at the same time type out the correct answer on the screen with the computer as follows:
t: now, let’s come to see “ a simple scientific experiment”!
then play the tape of passage b for the students and ask them to read the passage with the tape quickly and finish activity 4 on page 44.
in order to lead the students to read the text very carefully, the following task-based questions can be signed to ask them to answer:
⑴can you guess the meaning of the word “apparatus” through the context? have you known all of the apparatuses of this experiment?
⑵in the second part of the experiment, why must you boil the water? and then why do you add some oil to the water?
for question 1, some students maybe feel strange to some apparatuses. if so , the following pictures can be typed out with the help of computer to help ss to know about:
then in order to make the ss consolidate what they read in passage b and check if they have understood the experiment very well, activity 5 on page 46 can be typed out on the screen with the help of computer as a task-based activity。
step 4：discussion
⒈do you think it is easy or difficult for you to carry out a scientific experiment well? and can you describe how to do it successfully in simple words?
⒉if you want to learn science subjects well, what qualities do you think you should have? (possible answers: we should be careful / serious / diligent /patient /thoughtful/ etc. )
this step is to consolidate what ss have learnt in this lesson, in addition to penetrating the moral education to love science and form the rigorous scientific attitude.
homework:
⒈write a complete scientific experiment report in simple english.
⒉underline the language points you can’t understand in the text.
⒊go on to read the cutul corner reading passage of this module on page 49.
teaching summary:
⒈we’ve learnt about some vocabulary and knowledge related to science and experiments