Introduction
for Teachers
This
lesson introduces the student to using the TI82 calculator. The main
focus is to learn how to graph data from some data source. Because students
tend to copy one another's work, set up different files or web searches.
Have them copy their data on paper and enter it on the calculator. Graph
the data given and debug the results. This web exercise uses a document
file to set up groups and associated states. Each student is given a letter
to associate their name to a data file.
Back
Learners
This
lesson was designed for an 8th grade math or prealgebra class. It can
be used in 7th or above grades. Social studies questions are also included
as enrichment but it could be modified to be used with a science or social
studies lesson dealing with graphs.
Students should have paper, graph paper if available, pencil, and
should know how to label a graph correctly.
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Standards
At
the end of this lesson, students should be able to graph on the calculator
any given set of data. Students will learn how to turn on and off the
calculator, clear the memory, clear list 1, 2, 3, etc, adjust the windows
setting, sort data, and debug calculator errors. At the end, a student
should have produced 2 different graphs accurately representing the assigned
data.
Math
Standards Addressed
This webquest covers
the following (Texas) TAKS objectives:
Students
will use the internet to collect assigned data, work with a partner in
collecting data, read instructions to learn about the calculator, and
use critical thinking to analyze data and historical events.
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Process
Teachers should insure each
student has a working T82 calculator. Students can work alone or in groups
of 2. Create a web page or file that students can access to get their
data assignments.
 Check
the following site for groups and states you assign.
studentpopulationstate.doc.
This is the raw data
and can be in any form you choose.
 This site has population
statistics: http://www.npg.org/states/state_index.html
 Look
at the following site to find a calculator instruction lesson on how
to turn on and off your calculator. Learn how to clear all memory from
the calculator.
 Have
students set the graphing parameters that you prefer.
 Students
will forget where they should put their graphing data. Remind them to
use L1 and L2.
 Use
L3 and L4 for the 2nd plot data.
 Students
will loose their graph because they have the wrong Window settings.
You will have to modify those parameters in order to see your graph.
 Students need to
learn how to sort their data for other assignments. This
exercise should not require sorting.
 Put
the years in L1 and the population into L2. The second state's corresponding
data goes into L3 and L4.
 Graph
your data one state at a time. If you get a DIM MISMATCH error, your
list data is uneventhe L1 and L2 do not match uplook at the last
entry.
 Trouble
shooting the calculator: No graph appearscheck your plot stat  is
it on? Are you graphing L1 and L2 or L3 and L4? Do you need to change
the window parameters and did you enter your data in the correct list
table? Lines cross each otherdo you need to sort your data?
 Once
you have created your graphs, copy them onto paper. Use as much accuracy
as you can given the circumstances. You should have 2 graphs. Be sure
to label your graphs appropriately according to the given data and place
your name at the top of your paper.
Links
are provided to maneuver between the 4 pages in this webquest. The beginning
page is called the Student page. It contains the student's instructions
for the webquest and is linked to the other pages.
The
Resource link lists various calculators and calculator sites. This is where
students will learn about the calculator functions.
The
Evaluation page list how this assignment is to be graded.
The
Teacher page is this page where teacher information is provided..
The
teacher should be experienced in using the TI82 calculator and perform
the graphing assignments before assigning this webquest.
Variations
Change
the source data for different applications. The grading rubric can be
changed to suit the teacher's preference. Some web links may get dropped,
so other links have been added.
Back
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 Benjamin Rutherford
Updated:
Friday, June 16, 2006 9:25 AM
URL = http://teachertech.rice.edu/Participants/brutherford
