# Tag Archives: Scott Baldridge

## Meet Mathematician Jeremy Van Horn-Morris

In this episode we meet mathematician Jeremy Van Horn-Morris, who talks about some geometric and visual tools used to understand questions concerning the motion of particles. Continue reading

## Skip Counting with Fractions

In this “Growing up with Eureka” video, 6-year-old Autumn shows how to skip count by fractions 1/2, 1/3, and 1/5. Continue reading

## Ben McCarty plays “Swing that Hammer”

Listen to mathematician Ben McCarty sing “Swing that Hammer” using a Breedlove guitar. Continue reading

## Remarks on the History of Ratios

What was the definition of ratio used 2400 years ago? Jim Madden expounds on the different definitions of ratio used throughout the centuries. Continue reading

## Subtraction Problems with Kittens

Watch 6 year-old Autumn use Eureka Math methods to subtract two numbers, including 1017-999 in her head. Continue reading

## Ratios, ordered pairs versus points, proportional relationships, and proportions

What are ratios, proportional relationships, and proportions according to the CCSS-M progressions documents, and what is the difference between a point and an ordered pair? Continue reading

## I’m at the NCTM meeting this week and would like to meet you!

Want to talk the lead writer and mathematician of the Eureka Math/EngageNY curriculum? Here’s your chance at the NCTM national meeting! Continue reading

## Meet Mathematician Aaron Lauda

What did mathematician Aaron Lauda do when he proved one of his big theorems? Watch and find out! Continue reading

## ‘Eureka Math’ Embeds Real-World Problems in PreK-12 Mathematics Lessons

Find out what I think is a beautiful problem with an elegant solution by reading Jessica Hughes’ article, “‘Eureka Math’ Embeds Real-World Problems in PreK-12 Mathematics Lessons,” published at the Center for Digital Education. Continue reading

## Pleasurable Adding

Can you add as fast as a 6 year-old? See how Autumn uses techniques from Eureka Math to add two numbers, including 999+64. Continue reading

## Interview with Thomas Lam on electrical networks

Today we talk with Thomas Lam, professor of mathematics at the University of Michigan, about electrical networks. Geometry and Topology Today is a “news show” on state-of-the-art mathematics research discussed for a general audience. Continue reading

## The Mardi Gras Problem

At a recent family-friendly Mardi Gras parade, Autumn and I wondered: How many beads does a float rider need to buy for a Mardi Gras parade? Continue reading

## Multiplying by 9

In this video, 6-year-old Autumn shows how easy it is to multiply by 9. Watch her multiply 18×9 in her head and explain how she did it! Continue reading

## Learning to Multiply, Part III

In the grand finale and Part III of a three part series, we put the two skills learned in Part I and Part II together to show an easy way to start to learn the basics of multiplying. Continue reading

## Learning to Multiply, Part II

In this video on learning to multiply, Autumn shows how skip count by 10s, 3s, 5s, and 4s. In the grand finale, Part III, we put the skills learned from Part I and Part II together! Continue reading

## Interview with Moshe Cohen

Geometry and Topology Today is a “news show” on state-of-the-art mathematics research discussed for a general audience (including young people in high school). Today we talk with Moshe Cohen. Continue reading

## Autumn Multiplying 6×7, 7×7, 8×7, etc.

Autumn and I explore multiplying 6×7, 7×7, 8×7, etc. using unit math. Continue reading

## Introducing Cube Knots

Cube knots are a special way to represent a knot in 3-dimensional space. Check out this video that “flies through” a trefoil knot! Continue reading