必修5第一单元

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Great scientistsWho put forward a theory about evolution?

Who discovered radium?

Who invented electric lamp?

Who invented the earliest instrument to tell people where earthquakes happened?

Who defeated a deadly disease “King Cholera”?

Charles Darwin

Marie Curie

Thomas Edison

Zhang Heng

John Snow

QuizAre they great scientists?

What makes them great?Excellent characters

Care about the public

Invented something\ Solved some problemsStages for doing a scientific researchDraw a conclusion

Think of a method

Collect results

Make a question

Find a problem

Analyse the results

Find supporting evidenceJOHN SNOW DEFEATS “KING CHOLERA”Find a problemMake a questionFind supporting evidence

Collect resultsAnalyse resultsThink of a methodDraw a conclusionExample in this investigationWhat causes cholera?Which theory is correct?Collect data on those who fell ill or died and where they lived.Mark information on a map to find out where people died or did not die.Find out where they got their water. Analyse the water to see if it is the cause of the deaths.Find other evidence to support the analysis.It was certain that polluted water carried the disease. The source of all drinking water should be examined to make sure it is safe.5计时

开始4321五分钟倒计时DiscussionDo you thi 内容过长，仅展示头部和尾部部分文字预览，全文请查看图片预览。 entist”Follow the style

make your own report in group of 3.

Problems you may solve:

a. Puppy love

b. Fruits on our Xiang Yun hill

c. Run for a meal

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