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Using the Misuse of Science to Teach Biology and Chemistry.

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Presentation on theme: "Using the Misuse of Science to Teach Biology and Chemistry."— Presentation transcript:

1 Using the Misuse of Science to Teach Biology and Chemistry

2 The Misuse of Science Making critical thinking a part of a biology and chemistry Class Jeff Bradbury Cerritos College Jeff Orlinsky Warren High School

3 Our Goal: To demonstrate how you can use the misuse of science, especially the misappropriation of science terminology, as a jumping off point to teach biology and chemistry concepts.

4 Making Things Relevant Why use mass media? Introduce Critical Thinking skills We are not introducing new labs, just a different way to incorporate the labs Science classrooms are more than content. Students need to experiment, draw conclusions. Manipulate variables.

5 Mass Media

6 Misuse: “pH Balance”

7 pH- Acids-Bases Biology –Skin Bacteria growth –Selection media. Chemistry Buffers pH Titration labs

8 Buffers are critical for maintaining a constant pH of important solutions like the ocean or the blood stream, although the pH may not necessarily be constant 7 or neutral. A buffered pH can be at any level depending on the components of the buffer. used.

9 pH paper with acid, neutral and base solutions unbuffered

10 pH paper with acid, neutral and base solutions buffered at pH 5

11 pH paper with acid, neutral and base solutions buffered at pH 9

12 Misuse: “pH Balance” A Better use: Buffers

13 Misuse: “pH Balance” A Better use: Buffers Learning Experience: Buffers

14 Misuse: “Energy Drinks”

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16 Calories Biology Calorie lab Food Chain activities Chemistry Calories Lab

17 Misuse: “Energy Drinks” A Better use: Calories

18 Misuse: “Energy Drinks” A Better use: Calories Learning Experience: Calorimetry with a peanut

19 Measuring the calories in a peanut

20 Misuse: “Chemical Free”

21 Chemical Free

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23 Misuse: “Chemical Free” A Better use: All matter is made of atoms and compounds

24 Misuse: “Chemical Free” A Better use: All matter is made of atoms and compounds Learning Experience: My Pet Molecule & Dihydrogen Monoxide

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26 Chemicals in the system Biology –Geochemical systems –Elements and biochemistry activities

27 Misuse: “Pure Vinegar”

28 Misuse: “Pure Vinegar” A Better use: Solutions

29 Misuse: “Pure Vinegar” A Better use: Solutions Learning Experience: Investigating Solutions

30 Misuse: “Artificially Flavored”

31 Misuse: “Artificially Flavored” A Better use: “Synthesis”

32 Misuse: “Artificially Flavored” A Better use: “Synthesis” Learning Experience: Synthesizing pentyl acetate (Banana Oil)

33 Misuse: “Organically Grown”

34 Misuse: “Organically Grown” A Better use: “It’s all Organic Chemistry!”

35 Misuse: “Organically Grown” A Better use: “It’s all Organic Chemistry!” Learning Experience: Building Molecules

36 Misuse: “Organically Grown” A Better use: “It’s all Organic Chemistry!” Learning Experience: Which is the toxic molecule?

37 Misuse: Food Labels

38 Food Labels

39 Food Labels Biology –Peanut butter and oil Chemistry Non dairy fillings

40 Arsenic watch?v=OV5z-hEqjDwhttp://www.youtube.com/ watch?v=OV5z-hEqjDw 9/2011 Organic to inorganic Arsenic and valence electrons inorganic arsenic, reduced (trivalent As (III)) and oxidized (pentavalent As(V)

41 What’s in a name?


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