Texas Instruments TI-73VSC Teachers Guide - Page 11

6 Using the TI-73: A Guide for Teachers Activity-Part A Whole Class 1. Demonstrate to your students how to roll dice on the TI-73 to get 4 numbers. Record the 4 numbers. a. Go to the Home screen. - l b. Select dice from the MATH PRB menu, and paste it to the Home screen. 1 " " J c. Enter the number of dice you want to roll at one time. Q E b You now have 4 numbers. d. Record the 4 numbers on the transparency. 2. Have students use each of the 4 numbers once, along with any operations symbols (and grouping symbols, when needed), to write an expression that has a value of 1. Example If your 4 numbers were {4 3 4 5}, an expression would be 1 = (5 - 3) - (4/4). 3. Record one of these expressions on the transparency. Ask if anyone has a different expression. Record these, also. 4. Repeat this procedure to write an expression equal to 2. 5. Continue the demonstration until students understand what to do. Students may use the TI-73 to find the expression or to check the value of the expression. Example If the 4 numbers are {4 3 4 5}, and the expression is 1 = (5 - 3) - (4/4), then enter D R T [ E T D Q F Q E b. Number Sense © 1998 TEXAS INSTRUMENTS INCORPORATED