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## Technology Continues to Evolve

Over the past 100 years, technology has evolved in unprecedented fashion. Calculators, computers, and smart phones have become ubiquitous, yet school mathematics experiences for many children still remain without many powerful technological tools for the exploration of mathematics. We consider the evolution of some tools as we imagine a future.

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## Using Artwork to Explore Proportional Reasoning

By examining ratios in paintings and using a free educational app, students can size up artists' use of proportional reasoning in their creations.

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## Chivalry, at Least “Math Chivalry,” Is Not Dead!

A cartoon exploring a problem about order of operations is coupled with a full-page activity sheet.

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## Questioning the Order of Operations

Abandon mnemonics and make stronger connections between the operations and properties of arithmetic.

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## Odd Shape Out

### big solutions to little problems

Solutions to a previous Solve It problem are discussed, and the procedures used with problem solving are explored.

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## Mystery Fractions

This activity engages students in problem solving while exploring key concepts of number theory, such as divisibility and divisibility tests, place value, fractions, and scale factors.

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## Quilt Block Symmetries

Pull on the threads of congruence and similarity in a series of lessons that explores transformational geometry.

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## What's In A Name?

Students engage in an activity of predicting, collecting, organizing, analyzing, and interpreting data by exploring the frequency of names that occur over three generations.

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## Cartoon Corner: Presidential Puzzlers

A cartoon involving presidential birth dates is coupled with a full-page activity sheet.

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## Early Mathematics Fluency with CCSSM

To develop second-grade students' confidence and ease, use these three specific types of tasks that align with Common Core State Standards for Mathematics expectations.