# Math

Math (X) - Elementary (X) - Primary (X) - Professional Development (X)

## Building Deeper Understanding of Decimal Numbers

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Steve Hinds demonstrates how a brief discussion of money and decimals can help students to shed common misconceptions about decimal place value. (Click here for the background essay.)

## Do an Hour of Code | Tynker

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Build the computer literacy and problem solving skills students need to become innovators of the future.

Introduce students to computer programming, or take their coding skills to the next level as they engage in fun activities and projects that enhance STEM learning outcomes. With an Hour of Code with Tynker, teachers can easily introduce the basics of computer programming in a fun and intuitive way.  Start with any of the six adventure puzzles, then students can apply what they’ve learned to create fun projects to share with others – multi-level and multi-player games, math patterns, interactive comics and greeting cards.

No programming experience is required.  Use the resources provided to quickly plan a successful Hour of Code for your class. Students can access Candy Quest and Dragon Dash puzzles from this site.  The rest of the activities, plus a teacher's guide and answer keys, can be found at hourofcode.tynker.com.

## Deepening Conceptual Understanding

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Steve Hinds demonstrates an approach to graphing function solutions that is based on the underlying meaning of the points, and not on mechanically following a procedure. (Click here for the background essay.)

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Steve Hinds demonstrates and discusses how teachers can successfully and gradually move from informal to more formal representations of functions. (Click here for the background essay.)

## Resisting the Temptation to Be Too Helpful

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Steve Hinds demonstrates and discusses how teacher efforts to be helpful can sometimes backfire and limit opportunities for student learning. (Click here for the background essay.)

## Number Sense and Computation: An Apple a Day

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Using this resource group, teachers can focus on the topic of number sense and computation by having students make estimates to analyze the number of apples per acre. Students learn to take samples and use benchmarks to make reasonable estimates. This resource group is part of the Mathline Elementary School Math Project.

## Agent Obfusco's Challenges | Odd Squad

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Olive and Otto have to solve a series of challenges to keep their Odd Squad badges. Olive and Otto become concerned when they find out that the test they have to take to keep their Odd Squad badges is being administered by Agent Obfusco, a mysterious agent who speaks only in word problems. They create number sentences to figure out the answers.

## Number Sense and Computation: To Half or Half Not

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In this professional development video, teachers can focus on the topic of number sense and computation by creating equivalent fractions that represent one-half through the use of geoblocks. This video can be used in conjunction with the To Half or Half Not Lesson Plan.

## Patterns and Relationships: The Magic Box

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Using this resource group, teachers can focus on the topic of patterns and relationships. Students learn to recognize, describe, create and extend repeating and arithmetic patterns. This resource group is part of the Mathline Elementary School Math Project.

## Statistics: Creatures Features

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Using this resource group, teachers can focus on the topic of statistics. Students research and classify animals of the temperate forest; make a circle graph; collect, display (using a bar graph or line plot), interpret, and analyze a set of data. This resource group is part of the Mathline Elementary School Math Project.

## Geometry: Tiling the Plaza

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In this professional development video, teachers focus on the topic of geometry by having students arrange pattern blocks to create tessellations and explore geometric patterns. This video can be used in conjunction with the Tiling the Plaza lesson plan.

## Patterns and Relationships: Peddling Petals

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Using this resource group, teachers can focus on the topic of patterns and relationships by having students create, extend, and describe arithmetic patterns found in floral table designs. This resource group is part of the Mathline Elementary School Math Project.

## Probability: Chances Are (Part 3)

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In this professional development video, teachers focus on the topic of probability by identifying the likelihood of an event based on a set of data relating to mystery spinners. This video can be used in conjunction with the Chances Are (Part 3) lesson plan, as well as the Chances Are parts 1 and 2 videos and lesson plans.

## Probability: Chances Are (Part 1)

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Using this resource group, teachers can focus on the topic of probability by having students identify the likelihood of an event using a walk-on probability scale. Students learn to describe events that are certain, impossible, likely, and unlikely to occur. This resource group is part of the Mathline Elementary School Math Project.

## Measurement: It Takes Ten

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In this professional development video, teachers focus on the topic of measurement by having students estimate and measure in a variety of lab experiments. This video can be used in conjunction with the It Takes Ten lesson plan.