Texas Instruments TI-34 II Teachers Guide - Page 34
My Favorite Recipe-Fractions - how to do fractions
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My Favorite Recipe-Fractions Overview Students add the volume of ingredients in a cookie recipe to determine the size bowl they need before starting the recipe. Math Concepts • adding fractions • simplifying fractions Materials • TI-34 Û • pencil • student activity (page 30) Introduction Set up the activity by showing the students how to enter mixed numbers into the calculator, add and simplify them. 1. Have students practice adding mixed numbers. a. 4 5/8 + 3 4/5 b. 9 7/8 + 6 4/5 c. 5 5/6 + 3 1/9 d. 8 1/3+ 7 4/7 8 17/40 16 27/40 8 17/18 15 19/21 2. Have students practice simplifying fractions and mixed numbers. a. 9/12 b. 9 6/8 c. 4/6 d. 8 4/24 3/4 9 3/4 2/3 8 1/6 ³ 1. Before you begin, be sure that the calculator is in mixed-number mode. Press % ~ and press " or ! to select the mixed number mode. A−bÌc d/e 2. Press