Tuesday, February 16, 2010

Reading, Science and Critical Thinking

Science involves reading, comprehension, doing (experimenting), thinking, and, writing.
Some people compartmentalize their teaching and learning in a way that they think language arts are not found nor used in science. That concept is not limited to students. Scientists do, however, read, write, and for that matter, use math and history. Good science involves many disciplines. Some classroom ideas related to science literacy are included here.

Let students "Retell" to Enhance Science Literacy:

After a student reads a science textbook or a journal article (or portions thereof) or does a laboratory exercise, have him or her retell orally what was read or done. Ask the student to close the reading material or laboratory notebook and then tell you about the reading or exercise in as much detail as she/he can remember. If the student has difficulty retelling parts of the textbook or journal article reading, discussing his or her laboratory exercise, or further, if the student has difficulty remembering certain details, use prompts such as "Tell me more about (the scientist)" or "What happened after (the measurements were taken)?" or, "Why did you (measure the pH)?" Analyze the retelling for information the student gives about:

  • Main idea and supporting detail
  • Sequence of events (either of information presented or of tasks done in an experiment and reported in a journal article (laboratory report) or in a science story
  • Characters...Setting...Plot (in a science story)
  • Hypothesis, Materials and Methods, Results, Discussion and Conclusions (in a journal article)
  • Time line and who did what (in a history of science type of textbook)
  • Problem and solution(s)
  • Response to and discussion of text- or journal article-specific vocabulary and language

Check these points:

  • Can the student tell you what happened in a science book or journal article in his or her own words?
  • Does the student include details about the ideas presented in the retelling? Can she or he explain the relationships among the ideas? Can the student explain how the ideas relate to other things he or she knows?
  • Can the student describe the research presented? How detailed is the description? What was done? How?
  • Can the student recall the events of the presented material, and can she or he place them in the correct sequence?
  • Can the student identify what the science article or text was presenting and how researchers discovered it? Was their a hypothesis? A resolution? Can the student suggest future research or what may be discussed next in the textbook or in other research articles?
  • Does the student use vocabulary from the text or journal article?
  • Does the student's retelling demonstrate minimal, adequate, or very complete and detailed understanding of the science information presented?
Relate to higher order thinking skills
  • Knowledge- Example: Can the student repeat the given facts? Can he or she define the words?
  • Comprehension - Example: Can the student paraphrase the information? Can the student explain the meanings of the vocabulary words in the reading?
  • Analysis - Example: Can the student verify the data given?
  • Application - Example: How can the student use the information? Does he or she see how the information can be applied to one's own life?
  • Synthesis - Example: Can the student create a way to remember the information? Can he or she design a way to use the information?
  • Evaluation - Example: Can the student tell if the way he or she is using the information is successful in terms of selected parameters?
College (and some much younger students) students can further self-assess
  • How do you analyze the journal articles that you read? ---This topic is a post for another day----

Possible resource for funding and expertise: COS. Feedback by users is wanted.

If you have used COS (linked below) please share your experience with it so others can benefit. What do you know about the company? Thank you.

http://www.cos.com/

What is a light year?

Sometimes when students (and sometimes faculty) are reading, they stop when they come to a number or equation. Large numbers are difficult concepts for many. (Note that Einstein slowed down his reading of even a paragraph in order to understand it. So we have good company if we need to take our time to understand what we read.)

The film linked below, from the BBC, explains light years well and may help readability for astronomy and physics. I t helps build understanding of large numbers, thus increases science literacy. In my opinion, it is also enjoyable.

Here we go---What is a light year? http://news.bbc.co.uk/2/hi/science/nature/8493707.stm

Dr. J

Monday, February 15, 2010

Science in the News: DNA--->Ancient Human's Looks

Linked here: http://news.bbc.co.uk/2/hi/science/nature/8506080.stm
In the News

Black Holes ... Star Destruction ...

Here's an article to read and discuss. Discussing science in the news improves science literacy and education. Read it yourself. Remember I write for parents, teachers, mentors and other adults, and, for children with their families reviewing posts first. Since this deals with star destruction, a mature understanding is helpful. Most children understand the Sun is a star. The article has some interesting ideas, however, worth a look for your own mind expansion.

http://web.as.ua.edu/home/news/2010/webnews/february/edition_1.php#story2

Sunday, February 14, 2010

Poetry and Science: Anhinga

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Melding the study of poetry with the study of science can enhance both science education and science literacy.

When anhinga dive for food, their wings get wet and they pose in the sun to dry their feathers. Viewing several anhinga drying their wings led to a haiku:

Anhinga Haiku
by J S Shipman

The anhinga are
Hanging their wings out to dry
In the Everglades

Here is a photo of a female anhinga.

The audobon society has posted this information on anhinga wing-drying:

"Anhingas [...] have unusually low metabolic rates and unusually high rates of heat loss from their bodies. Whether wet or dry, they exhibit spread-wing postures mostly under conditions of bright sunlight and cool ambient temperatures, and characteristically orient themselves with their backs to the sun. Thus, it appears that Anhingas adopt a spread-wing posture primarily for thermoregulation -- to absorb solar energy to supplement their low metabolic heat production and to offset partly their inordinately high rate of heat loss due to convection and (when wet) evaporation from their plumage."
Source: http://www.corkscrew.audubon.org/Wildlife/Birds/Wing_spreading.html; Accessed February 14, 2010.

Here's another photo from today's visit. Perhaps the male, can you tell?:

More anhinga information and photos:

(c)2010 J S Shipman

Alligators are Nocturnal (The bird is hoping!)

The bird may be a tri-color heron. I have to verify. Let's see.... I am on the computer. This post is on a blog about improving science literacy. How could a student answer this question? Keys to herons? Photos? While you look at the photo, we'll open up another tab and check out some information.


Aha! It is a tricolored heron (and used to be called a Louisiana Heron(Egretta tricolor)). See, hear, and read more:

(c)2010 J S Shipman. All rights reserved. (photo and text)