Introduction
Learners Standards Process Resources Evaluation Student Page Home


Teacher Introduction

This lesson was developed as part of the TeacherTECH, the teacher professional development component of GirlTECH, which is sponsored by the Center for Excellence and Equity in Education (CEEE) and made possible by support from the National Science Foundation and Rice University.

Composite function is a curriculum topic to cover in Algebra 1 Pre-AP class in CCISD. Most students found the topic difficult when I covered it last fall and I developed this lesson to have them to utilize available resources (lessons) posted on the web to assist them in learning the topic.

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Learners

This lesson is designed for 9th grade Algebra 1 Pre-AP class students.

This lesson should follow a traditional in-class introduction lesson of composite function lesson which in turn should follow a unit on function.

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Standards

  1. Learn about composite functions and their domains and ranges.
  2. Integrate knowledge in technology by producing a power point presentation.
  3. Learn to compare and analyze usefulness of information available on the internet.



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Process

This lesson should be presented at the end of the first introduction lesson on composite function. It would be great if you can reserve a lap-top cart for your class so that each student could browse the web individually at first and then share their favorites as a group.

You might already have a preferred method to form the group, which is fine with me but you might consider forming a group with mixed ability for this lesson so that the one who grasps the concept first would be able to explain to the others.

The following is listed for the students to follow.

  1. First you'll be assigned to a team of 3 students. You will need a leader, a presenter, and a recorder.

  2. Once you've picked a role to play, research the web and locate lessons on Composite Functions. You may use the resources posted here or use the ones you've found.

  3. Select the lesson (on web site) your group like the best and use it as a base to produce a power point presentation (between 3 to 5 minutes long) using your own explanation of what a composite function is.

  4. The power point should include the following elements.

    1. The title slide with the name and the role of the each group member.
    2. Slides demonstrating the result of interactive session using the composite functions java applet, resources #4. For example, start your interactive session with f(x) = 5x and g(x) = x+5. Then switch the function by letting f(x) = x+5 and g(x)=5x. Notice the change. Why is an entry "undefined"? Can you adjust any of the settings to control the "undefined" entries?
    3. One of the slide should discuss the concept of domain and range of composite functions.
    4. Include 3 different examples of composite functions. Each member should provide on example each.
    5. The last slide should be the reference slide citing your sources in the correct URL format. High-light the resource your group liked the best.

  5. Check your evaluation rubric to understand how your work will be evaluated.

Note: The presentation should be more exciting for students (and you, too) if you could check-out a smart board for the students to use.



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These pages were developed through TeacherTECH, the teacher professional development component of GirlTECH, which is sponsored by the Center for Excellence and Equity in Education (CEEE) and made possible by support from the National Science Foundation and Rice University.

Copyright © 2006 by Yoonok Kang
Updated: Friday, July 7, 2006 10:03 PM

URL = http://teachertech.rice.edu/Participants/ykang/