EDUC 6470 Experimental Instructional Plans

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Revision as of 13:09, 17 February 2010 by Shawn (talk | contribs) (Features of inquiry)
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Explanation

For any of these lessons, I would like to focus on the tension between free inquiry and predetermined goals, as in Furtak 2006.

Optional concepts indicate the possibile learning outcomes depending on student or teacher choice of paths during the lesson.

Possible topics for the lesson

Explaining the seasons

Topic
8th-10th grade school earth science, the solar system.
Concepts
Orbit, cumulative change, radiation.
Optional concepts
Discussion
Sadler et. al, Wikipedia's misconceptions page ( http://en.wikipedia.org/wiki/Common_misconceptions#Astronomy ), and many educators have cited the power per area argument for the seasons, due to the tilt of Earth in its orbit. Few discussions of the orbital causes of the seasons list length of day, and none I've seen help students see the seasons as a cumulative effect rather than an instantaneous one, thus explaining why January, when the sun is higher in the US, is usually colder than December, or early August is usually hotter than mid-June.
Activity
Let's do some group work with a numerical model to compare the power/area-effect and the length-of-day effect. We'll see that the problem isn't too simple an inquiry, since there are different ways to tease apart the two effects, none quite satisfactory to me.
Features of inquiry
  • All minimal from student, maximal from teacher, according to NRC 2000.

Understanding an LED

Topic
High school physics, solid state physics.
Concepts
semiconductors, band gap, energy conversions, color.
Optional concepts
Frequency, wavelength, wavelengths of various colors
Discussion
Activity
Totally student-determined, given materials.
Features of inquiry
  • Learner poses a question.
  • etc. (all maximizing learner self-direction, according to NRC 2000)

Repeating Galileo's discovery of the Medicean stars

Topic
High school, physics, motion.
Concepts
Kepler's Law (ratios of periods, diameters); planets; heliocentric system; angular separation; orbit.
Optional concepts
Discussion
Activity
Features of inquiry
  • Learner poses question (whatever they want).
  • Learner directed to collect certain data (distance of dots from Jupiter over time).
  • Learner forms or is guided in formulating explanations.
  • Learner directed toward area of sources of scientific knowledge or given possible connections.
  • Learner provided broad guidelines to use to sharpen communication, or given steps and procedures for communication.