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## Puddle Play!

For the Love of Mathematics

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## Student Engagement with the “Into Math Graph" Tool

We introduce the Into Math Graph tool, which students use to graph how “into" mathematics they are over time. Using this tool can help teachers foster conversations with students and design experiences that focus on engagement from the student’s perspective.

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## Using Scratch Programming to Explore Coordinates

We present a Scratch task we designed and implemented for teaching and learning coordinates in a dynamic and engaging way. We use the 5Es framework to describe the students' interactions with the task and offer suggestions of how other teachers may adopt it to successfully implement Scratch tasks.

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## Triangles from Three Points

Using technology to solve triangle construction problems, students apply their knowledge of points of concurrency, coordinate geometry, and transformational geometry.

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## Angry Birds Mathematics: Parabolas and Vectors

Vector properties and the birds' frictionless environment help students understand the mathematics behind the game.

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## Spaghetti Sine Curves: Virtual Environments for Reasoning and Sense Making

The Spaghetti Sine Curves activity, which uses GeoGebra applets to enhance student learning, illustrates how technology supports effective use of physical materials.

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## Media Clips: Optimizing HDTV Viewing Angles; Onside Kicks

Students analyze items from the media to answer mathematical questions related to the items. This month's clips are from an ad for HDTVs, which involves trigonometry and calculus, and from a sportscast, which involves probability and the binomial distribution.

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## Reader Reflections – August 2013

Readers comment on published articles or offer their own ideas.

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## Visible Thinking in High School Mathematics

Chalk Talk and Claim-Support-Question are two routines for developing students' ability to use multiple representations and encouraging classroom discussion.

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## Robots Bring Math-Powered Ideas to Life

A compelling contest motivates students and makes mathematics and STEM relevant.