Texas Instruments TI-34 II Teachers Guide - Page 8

The Better Batter-The Fix Key Overview Students use % , on the TI-34 Û to change numbers to different place values. Students calculate batting averages using the TI-34 Û and then round their answers to 3 decimal places. Math Concepts Materials • rounding • TI-34 Û • place value • pencil • division • comparing and ordering decimals • student activity (page 4) Introduction 1. Have students practice rounding the following numbers to 3 decimal places using pencil and paper. a. 2.35647 b. 15.3633 c. 0.02698 2.356 15.363 0.027 2. Have students round the following numbers to 4 decimal places using the TI-34 Ö. a. 4.39865 b. 72.965912 c. 0.29516 d. 0.00395 4.3987 72.9659 0.2952 0.0040 Activity Present the following problem to students: You are going to play Virtual Baseball. You need to select 9 players from the list to be on your team. Choose the players with the best batting averages. Find the batting averages (number of hits/ number of times at bat) rounded to 3 decimal places for each player. Make a list of your players in order, from highest to lowest. See the table on the next page for solutions. ³ 1. Enter the first number and press