# Math

• #### A Donut Investigation

Ian Byrd

In this video, students investigate a strange image that asks which has more sugar: a donut or a health drink? What about a salad? Using math and language arts skills, they'll determine if this image shows a complete picture or is misleading.

• #### Math Curiosity: Waring’s Conjecture

Ian Byrd

Students will tackle Waring's curious conjecture from 1762: all odds are either primes, or can be written as the sum of three primes. After 250 years, we still don't know if it's true or not!

• #### Investigating Caffeine Part 3

Ian Byrd

In this final part of the caffeine investigation, students will analyze advertisements, and then create a public service announcement.

• #### Investigating Caffeine Part 2

Ian Byrd

Students, now armed with data about five caffeinated beverages, will survey a set of peers and/or adults to uncover misconceptions about caffeine.

• #### Investigating Caffeine Part 1

Ian Byrd

This is the first of a three part interdisciplinary math project. Students will be investigating caffeinated beverages, dangers of caffeine, and how advertising affects our perceptions.

• #### Mathematical Curiosity: Primes and Squares

Ian Byrd

Can all perfect squares be written as two primes added together? In this exploration, students will discover interesting relationships between these types of numbers.

• #### Eulerian Paths

Ian Byrd

Have students tackle the classic "Seven Bridges of Konigsberg" problem - can you cross each bridge exactly once?

• #### What Do Mean and Median Mean?

Ian Byrd

We'll explore money and test scores as we determine which is more useful: mean or median?

• #### Math Curiosity: Legendre’s Conjecture

Ian Byrd

It seems like there's always at least one prime number between two perfects squares. But is this always the case?

• #### Math Curiosity: Finding Primes

Ian Byrd

Prime numbers seem to appear randomly. How do we reliably find primes without dividing every number by every possible factor? The answer is thousands of years old…

• #### Math Curiosity: Twin Primes

Ian Byrd

Twin Primes are prime numbers that have a difference of two. Mathematicians think there are an infinite number, but aren't sure yet. Have your students look for patterns as they dig into the Twin Prime Conjecture.

• #### Triangle Sums

Ian Byrd

From Prufrock’s Advanced Common Core series, we introduce the Triangle Sums exploration.

• #### Factor Scrambles

Ian Byrd

A sample puzzle from the Factors and Multiples edition of Prufrock’s Advanced Common Core Math Explorations series.

• #### Visualizing Fraction Multiplication

Ian Byrd

In this video, students will learn a way to visualize fraction multiplication.

• #### Percents and Credit Cards

Ian Byrd

Students will purchase a large item on a credit card, and calculate the cost of interest if they only make the minimum payments.

• #### Fraction Puzzlers

Ian Byrd

A set of challenging fraction puzzles from the series Advanced Common Core Math

• #### A Visual Guide To Dividing By Fractions

Ian Byrd

Dividing by fractions is counter-intuitive and confusing. We'll use several animations and sketches to develop students' conceptual understanding of this operation.

• #### Discovering Pi With Sticky Notes

Ian Byrd

Students will experiment with sticky notes to find the area of a circle and, along the way, discover pi!

• #### Exploring Circumference With Famous Circles

Ian Byrd

Let students discover the relationship between diameter and circumference by exploring some famous circles.

• #### Analyze and Create Misleading Graphs

Ian Byrd

Create a fun classroom activity where students don't just analyze inaccurate graphs, but create their own and try to mislead their classmates.

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