Texas Instruments TI15TK Teacher Guide - Page 42
Student Activity, What's The Problem?
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What's the Problem?(Continued) Collecting and Organizing Data As an ongoing activity, have students work in pairs and use the What's The Problem? Student Activity sheet to create problem-solving cards. Have one partner create an addition, subtraction, multiplication, or division number sentence, using the "?" and record it in the top box and on the calculator. If possible, the other partner creates a situation and question to go with the number sentence and records it in the bottom box. The two boxes can be glued or taped to opposite sides of an index card. Have students work together with the calculator to explore how many whole number solutions the equation has and test what the solutions are. Provide ideas for exploration by asking questions such as: • What actions could be happening in your story to go with addition (subtraction, multiplication, or division)? • How could you use these counters to act out this number sentence? • What could this number in the number sentence represent in your story? • What could the question mark in the number sentence represent in your story? • Can you make a story for a number sentence that begins with a question mark? Analyzing Data and Drawing Conclusions To focus students' thinking on the relationships between their stories and the numbers and operations in their number sentences, ask questions such as: • How would using a different number here change your story? • How would using a greater than or less than symbol instead of an equal sign in the number sentence change your story? • How would using a different operation in your number sentence change your story? © 2000 TEXAS INSTRUMENTS INCORPORATED TI-15: A Guide for Teachers 35