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USING THE HUNDREDS CHART TO BUILD NUMBER SENSE Presented by Paula Jones

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AGENDA Introduction to the hundreds chart – 15 minutes Hundreds Chart Interactive Activity – 15 minutes Connection to 8 mathematical practices – 10 minutes Ten games using the hundreds chart – 1 hour Wrap Up and resources – 20

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OBJECTIVES Participants will gather resources and materials to incorporate hundreds charts games into their EnVision math workshop. Participants will recognize how the hundreds chart can be used to support the 8 mathematical practices. Participants will recognize the purpose of the hundreds chart is to provide a framework for students to think about our base 10 system and to allow students to build a mental model of the mathematical structure of our number system.

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WHAT IS A HUNDREDS CHART? A 10-by-10 grid with the numbers 1 to 100 printed in the squares.

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WHY USE A HUNDREDS CHART? Provide a framework for students to think about our base ten system. Allows students to build a mental model of the mathematical structure of our number system. Allows children to explore concepts from counting to adding two- digit numbers. Gives the opportunity to bring in several Mathematical Practices.

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YOUR TURN! Take a moment to make a list of all the ways you currently use the hundreds chart in your classroom. Turn and talk to a partner about what you currently do in your classroom. Share out some of the ways we are currently using the hundreds chart.

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INTRODUCING THE HUNDREDS CHART Building a hundreds chart with your students. Arrow Arithmetic Where do these fit in with the 8 Mathematical Practices? What does the hundreds chart mean to kids conceptually? How does the hundreds chart connect to base 10 system and number sense?

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8 MATHEMATICAL PRACTICES 1.Make sense of problems and persevere in solving them. 2.Reason abstractly and quantitatively. 3.Construct viable arguments and critique the reasoning of others. 4.Model with mathematics. 5.Use appropriate tools strategically. 6.Attend to precision. 7.Look for and make use of structure. 8.Look for and express regularity in repeated reasoning.

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GAMES USING THE HUNDREDS CHART Why these games? When? Materials you will need.

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GAMES USING THE HUNDREDS CHART The importance of modeling. Wait patiently for your turn How to pass game pieces appropriately to your partner How to win or lose gracefully Using recording sheets (accountability piece)

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10 GAMES Number Chart Bingo! Too High, Too Low Fill It Up! Mystery Squares Don’t Get Lost Hippety Hop Race to 100 101 and Out! The Larger Difference How Far Away?

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LET’S PLAY! In your packet for each game, let’s look at: Overview Key Questions Time Materials

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RESOURCES Hundreds Charts packet, just some more ideas! Check out the Melrose Curriculum Wiki, the PD on math games (K-2) included some hundreds charts games. Book: It Makes Sense! K-2 by Melissa Conklin and Stephanie Sheffield

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