Value Systems and Science: Khan Academy and Your Essay

Evolution, natural selection...Do these ideas fit your values?  Have you researched them or blindly repeated what you've heard said?  Data are truth.  Many religions seek truth.  Have you thought about truth?  Science and religion share that they are about truth-seeking.  Some students get excited about science when they study it from the point of their own value systems.

First have students jot down ideas for an essay on evolution from any perspective that they would like.  They can make a map of their ideas, or, use an outline, chart, picture, or list.  Let them use any way they would like to form a presentation of their ideas.

Next, have them put an opinion or feeling they would like to share.  They can circle this or put a box around it...Use some way to keep their sentiment or point in focus.

Set these items aside.

Now, here is a video to watch:
http://www.khanacademy.org/science/biology/v/intelligent-design-and-evolution?v=qxOEz9aPZNY

Have the students watch the video.  They may take notes.  They don't have to take notes.  They may use any format for the note-taking they desire if they do take notes.

Have them jot down the major points of the film and then box their feeling or opinion about the film they would like to share.

Have students then take some time even a week or two to write a comparison and contrast essay between their initial ideas and the ideas presented in the video.  Have them add information from 5 other sources of their choosing, religious books, newspaper articles, texts or story books, or, even and hopefully at least one journal article...  Be sure to have them cite the sources.  (They can use a style manual for that.  The librarian can help you find one or you can find some on line.  I suggest using a science one or one for publishing articles in a magazine.)

The purpose of this essay will be for the students to examine science from their own value systems as they are.  The work should not be steered by any adult or voice.  Let the student think deeply.  Let them know that this is where they are now in their thinking and their is no "wrong-ness" in thinking their own thoughts.  Explain that throughout life we use our value systems whether cultural, religious or other, to influence how we think and what we think about topics.  If they were writing this essay in 5 years, their views might be different because of their life experiences, their learning, and their deepening of personal views.  Let them know that periodically re-examining where they stand on issues is a good thing.  Stagnation is not a good thing, on the other hand.
Let the students have fun exploring their values and how they relate to science and how they relate to growth in life.
(c) 2012 J S Shipman

Visiting Mr Romard's Class...

Science
We will play a mystery circuit game to determine how wires are setup behind a hidden display. We will learn how to read simple electrical diagrams and how to make a bulb super bright. Students will be asked to bring a used bulb from home so we can break it inside a bag to identify the parts and discuss how it works.

Read more here:
http://teachers.saschina.org/mromard/2010/02/25/electrifying-science/

Evaluating Sources as a Part of Science Literacy

Today information is readily available. But, how does a student evaluate the literature available? "Hype" and sales pitches are easy to read, but, do they provide accurate information? Some do. Some do not. How do you know?

There is much controversy over human chorionic gonadotropin, better known to the general public as HCG. How can we use science literacy skills to evaluate this compound? If you are a regular reader of this blog, you know we typically start with general information and progress through Reach Reading TM to the refereed journal articles, which are peer reviewed.

Obesity is a problem. HCG is a product touted to contribute to lasting weight loss(Here's one website, but, there are many: http://www.yourhcg.com). Is that a factual concept? We know money is made from people trying various products or surgery to lose weight. How can one use science literacy to determine which information to believe? I am not saying use this example, HCG, for students. Pick something of interest to them. For example, if they have a pet cat, they might be interested in pet food advertisements and research that has been done on pet nutrition.

Do a search engine search for HCG (or a student- or teacher- selected topic). Pick a few articles. Evaluate them. How difficult is the vocabulary? Are the claims backed up with fact? Take some notes on points that interest you and remember to note the information to site the sources (left hand column of the blog has some style manual links if you need assistance with that).

Now, using some words or phrases that you find in the general literature to help you find information in the technical literature...the laboratory reports. Remember. the laboratory reports follow a format that is international in nature and are peer-reviewed (evaluated by other scientists in the same field):

• Introduction (background information, and hypothesis to be tested),
• Materials and Methods (procedures)
• Results (data)
• Discussion and Conclusions (discussion of the data, suggested public policy, suggested future experiments and requests for funding...)
• Literature Cited (gives complete source information)

These "laboratory reports" will be easy to recognize if you follow the same format for your own classroom laboratory experiments (granted, simplified as per student ability).

Here are some examples of peer-reviewed ("refereed") journal articles on HCG:

1. Human Chorionic Gonadotropin (HCG) in the Treatment of Obesity: A Critical Assessment of the Simeons Method by Frank L. Greenway, MD and George A. Bray, MD. West J Med. 1977 December. Vol. 127. No. 6. Pp. 461-463. PMCID:PMC1237915 http://www.ncbi.nlm.nih.gov/ pmc/articles/PMC1237915/

2. Effect of human chorionic gonadotrophin on weight loss, hunger, and feeling of well-being by W. L. Asher M.D.¹ and Harold W. Harper M.D.¹ From the American Society of Bariatric Physicians Research Council, 333 West Hampden Avenue, Englewood, Colorado 80110. American Journal of Clinical Nutrition. Vol 26. Pp211-218. (c) 1973 by the American Society for Clinical Nutrition, Inc. http://www.ajcn.org/cgi/content/abstract/26/2/211

These two articles have opposing conclusions, so, to formulate my own opinion on this topic, I would have to find more research. Knowing myself, I'd probably do an exhaustive search. The idea is not for students to take my opinion, nor for them to take their teacher's opinion, but, rather for them to learn to form their own opinions and be able to back those opinions up with information from refereed journals.

Check who paid for the research. Does the article support or attack or remain neutral on the points of interest to you? Were the research methods sound? (This type of analysis must be done at the students level...but even pre-school children get the concept of control versus experimental, even if they may not know all the vocabulary.) Is the vocabulary tougher? If we want to know something, we learn the vocabulary. (I have seen students in elementary and high school science classes use the refereed journal articles and stay much more engaged in science class as a result. But, even if the articles are too hard to read, the students get the idea that research exists and if they have a need to know, they will find and learn to read the articles. Students have come back years later to thank me for introducing them to the journal articles. Two more notes: 1- Journal articles exist in all fields...in case you are an artist, or a history buff... 2- People that win the national science fairs typically read a few refereed journal articles.)

Sometimes you might come across related articles that are a bit off topic, yet peek interest in further study, such as research ...

on HCG and breast cancer risk (or lack of risk).
http://cebp.aacrjournals.org/content/4/5/437.full.pdf; Accessed 10-26-09.

Find some refereed research articles on your selected topic(s).

Plan to write a persuasive essay based on your findings.

Most of all, have fun. I think of this as, "mental recreation."

Edit, Nov. 4, 2009:
Not convinced that refereed journal article reading is an important part of science literacy?
Want one parent's viewpoint on reading journal articles, which concurrently explains basic biology and genetic engineering? Try reading The Unhealthy Truth: How our Food is making us Sick and What We can do about It, by Robyn O'Brien [and] Rachel Kranz (Broadway Books (Random House), New York. 2009). Read more.


(c)2009 J S Shipman All rights reserved. Portions (c)1985-2009 J S Shipman. Used with permission of the author.

Point of View and Science

Here is an article with a particular point of view: Let them eat Dust

Try reading it and then see if you can find facts to support the point of view specified in the article.

Do you share the same point of view found in the article, or, does your view differ? Can you find facts to support your point of view?

What is the main idea of the article?

Why does the article talk about dust? Starvation?

What does science have to do with the article?

Here are some hints: botany, agricultural science, climatology, meteorology, chemistry, virology, bacteriology, mycology...

Does science overlap with economics, politics and other areas? How?

Did you enjoy reading this article? Why or why not?