User manual TEXAS INSTRUMENTS TEACHERS TI-73 EXPLORER GUIDE

[. . . ] Using the TI-73: A Guide for Teachers Table of Contents < Developed by Cathy Cromar, Stephen Davies, Pamela Patton Giles, Gary Hanson, Pamela Weber Harris, Rita Janes, Ellen Johnston, Jane Martain, Linda K. McNay, Melissa Nast, Louise Nutzman, Aletha Paskett, Claudia Schmitt, and Karen Wilcox Edited by Brenda Curry Design by Susan Gullord With contributions by Eddy Frey, Doug Harnish, Guy Harris, Gay Riley-Pfund, and Dianna Tidwell ii Using the TI-73: A Guide for Teachers 1998 TEXAS INSTRUMENTS INCORPORATED iii About the Development Team Texas Instruments would like to acknowledge the following individuals who worked as a team in developing and evaluating these materials. Cathy Cromar teacher, Cottonwood Heights Elementary School, Salt Lake City, Utah Stephen Davies teacher, Oquirrh Elementary School, West Jordan, Utah Pamela Patton Giles K-12 math specialist, Jordan School District, Sandy, Utah Gary Hanson teacher, Sprucewood Elementary School, Sandy, Utah Pamela Weber Harris teacher, Southwest Texas State University, San Marcos, Texas Rita Janes teacher, Newfound Educational Associates, St. John's, Newfoundland Ellen Johnston teacher, Trinity Junior High School, Fort Smith, Arkansas Jane Martain teacher, Mountview Elementary School, Salt Lake City, Utah Linda K. [. . . ] Move to Type and select the xyLine plot (first row, second from left ). Set up the viewing window to match the part of the coordinate grid that you used. ' The values shown in the screen at the right are the standard default values (( 6:Zstandard). For more information, see "Setting the Window Format" and "Defining Window Values" in the Function Graphing chapter of the TI-73 Guidebook . * You may want to link the student picture to the viewscreen calculator to display on the overhead. If you want to turn off the grid, press - g # b. dim If a student getsita means mismatch error, that the 2 corresponding lists have a different number of elements. You may also need to check the Y= editor to clear or turn off any functions (& :). students should Yourto set up the learn how WINDOW, but you can use ( 7:ZoomStat to get the ideal WINDOW values. 1998 TEXAS INSTRUMENTS INCORPORATED 38 Using the TI-73: A Guide for Teachers Geometry Wrap-up Have students compare their team's picture graph with another team's picture. Have them discuss with their partner and the other team whether or not the graphs are exactly alike and why or why not. can ) Students" topressthe and then view coordinates of each point of their picture. Assessment Suggestions Ask: What was represented by the numbers in L1 and L2? Have students write a journal entry explaining what they learned. Extensions Have students draw their own picture and label the ordered pairs. Have students change the appearance of the dolphin without changing the data in the lists. Have students explore what happens if they reverse the x- and y-coordinates. (Change which list is the Xlist and which is the Ylist in the Stat Plot setup. ) If students want to store their picture to recall at another time, 1. 2""b 1998 TEXAS INSTRUMENTS INCORPORATED Geometry Activity 7: The Dolphin 39 3. b to select Pic1 or 2 to select Pic2 or 3 to select Pic3 To recall the picture, 1. Starting at the Home screen (- l), go to DRAW STO and select RecallPic. Press *. 1998 TEXAS INSTRUMENTS INCORPORATED 40 Using the TI-73: A Guide for Teachers Geometry 1998 TEXAS INSTRUMENTS INCORPORATED 41 Activity 8 Measurement and Geometry rate of change volume graphs of equations Drip, Drip, Drip Students collect data from a dripping faucet. Afterwards, they view the same data using a table, a graph, and the Trace feature. Materials student activity sheets (provided) sink with faucet or large container with a small hole in lid watch with second hand container for collecting water measuring cups or cylinders TI-73 Activity--Part A Have students perform the steps unless otherwise indicated. Turn on the faucet to a slow drip, and place a container to collect the water. Record on the student activity sheet the exact time when you begin to collect the data. During the collection, count and record the number of drops for any 2-minute period. Measure the volume of the water collected in the 10-minute period. a faucet is not If large containeravailable, a with a small hole can be used (plastic gallon milk jug, large can, etc. ). Leave the lid on the container to get a drip rather than a steady stream of water. 1998 TEXAS INSTRUMENTS INCORPORATED 42 Using the TI-73: A Guide for Teachers Measurement and Geometry 7. [. . . ] Make a bar graph on the TI-73 showing the frequency results of the polls. -eZb 1998 TEXAS INSTRUMENTS INCORPORATED Probability and Statistics Activity 12: Which Brand is Best? 75 d. Select the bar graph (first row, last from left) and continue setting up the plot as in the picture at the right. (DataList2 and DataList3 allow you to do a double or triple bar graph. [. . . ]