Author Archives: Scott Baldridge
Testing out the new Green Screen (Plus a bonus 14×16 calculation)
Which background screen should we use for Geometry and Topology Today? Take the poll! Continue reading
Powers of 2
In this video, 6-year-old Autumn explains the meaning of “2 to the power of 4.” Continue reading
An article on how Eureka Math began.
A nice article by Leigh Guidry on the creation of @Eureka_Math and how the math curriculum has helped raised student test results in Rapides Parish, Louisiana. Continue reading
Electric Girls: Shaping Role Models in Technology
Girls soldering, drilling, building circuits? Why, of course! Duh. Continue reading
The Secrets of my Teaching Success: James Tanton
I recently asked James Tanton, “What are some of the secrets for your success as a teacher?” Here’s what he said. Continue reading
Something fun: Have you ever used a ruler to measure a Snafoose?
Have you ever tried to measure a Snafoose while riding a goose? Continue reading
What is the sum 1+2+3+4+…+24+25?
In this video, 6-year-old Autumn shows how she found the sum 1+2+3+4+….+24+25. Continue reading
In Memory of Dr. Dolores Margaret Richard Spikes
Thank you for your contributions to mathematics, Dr. Spikes. Continue reading
A Quick Comparison of a State Assessment and Eureka Math
We compare types of problems expected on new state assessments with examples from the Eureka Math curriculum. Continue reading
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
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
A big NCTM thanks and next year’s talk
A big thanks to all the people who attended my NCTM talk, and a question: Would you like to see my daughter Autumn do some Eureka Math at next year’s NCTM meeting? 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
Common Core, Eureka Math shake up Louisiana classrooms
Find out the difference between the Common Core State Standards and the Eureka Math Curriculum from Phil Daro and Lynne Munson in this article by Jessica Williams. 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
EdReports.org’s Review of Eureka Math
Only one curriculum stood out from the pack. Can you guess which one? 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
Fluency without Equivocation
What is the difference between fluency and blind memorization, and how does the EngageNY math curriculum achieve automaticity? Read on to find out! 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
Learning to Multiply, Part I
Intended Audience: Teachers and parents of K-5 students This Growing Up With Eureka video is Part I of a three part series on how to start the process of learning to multiply with your child/students. By “start the process” I mean we … Continue reading
Line arrangements from an advanced perspective
We continue our conversation with mathematician Moshe Cohen, who now discusses line arrangements from an advanced perspective. Continue reading
Scott Baldridge 
Eureka Math Curriculum: A Breakout Hit
Who are the real breakout hits behind the Eureka Math/EngageNY Curriculum? Continue reading →