Author Archives: Scott Baldridge
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
Meet some of the writers of Eureka Math
What I love about this short video is that it highlights three of the many talented teacher-writers that worked on Eureka Math with me. 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
100th Day of School
On the 100th day of first grade, Autumn asked me if we could do a Growing Up With Eureka based upon the day. Well, yes, of course! Continue reading
Making Science Cool: Solving the Shortage of Math and Science Students
In 2011 I was invited by U.S. News and World Report to sit on a panel to discuss how to get students excited about STEM. Continue reading
Singapore Math Adds up for US Teachers
A radio interview I did with Voice of America in 2010. Listen to two of my favorite teachers: Johnette Roberts and Gertie Walls! Continue reading
Singapore Math Growing in Popularity
An interview with Kim Covington and 12 News from July 1, 2010. Continue reading
Math Expert Dr. Scott Baldridge on “Singapore Math”
Watch one of my first television interviews. You can easily tell how nervous I am! 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
Alice 3 Demonstration
This demonstration is by my (then) 5-year-old daughter Autumn. The software program, Alice, is a great way to help students learn the basics of programming games. Continue reading
Walking up the stairs little girl
Autumn’s “famous” for being the little girl in the following video used in the Eureka Math/EngageNY Curriculum: 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
Is it okay to write, “1 inch = 13 feet?” to set up a scale factor?
Why is this statement incorrect in setting up a ratio relationship? Hint: the = symbol. Continue reading
First grade: Is, “3 girls + 2 boys = 3 kids + 2 kids,” a number sentence?
This statement appears to be perfectly okay, but causes problems due to the precise language of mathematics. Continue reading
Simple example of Textbook School Mathematics.
An example of Textbook School Mathematics. Continue reading
What is a variable? Part II: Expressions.
We describe expressions in this continuation of Part I. Continue reading
What is a proportional relationship?
The Common Core State Standards (CCSS) use the term “proportional relationship” throughout the standards. Fortunately, the standards clearly describe what is meant by that term. Continue reading
What is a variable? Part I: Symbols.
There are three important types of symbols used in mathematics: constant symbols, placeholder symbols, and operator symbols. Which of the three types is a variable? Continue reading
What is a quantity?
Well….it makes sense that “3 liters” is a quantity, but what is it really? Learn more by reading this post! Continue reading
Modeling (24÷3)÷2 = 24÷6
Modeling (24÷3)÷2 = 24÷6 in a way that makes sense to a fifth grader is tricky. Continue reading
Teaching my 3-year-old to read.
See Autumn learning to read at 3 1/2 years old! (She is now an avid reader at 6.) Continue reading
Hello world!
An introduction to my Commentary Channel. Continue reading
Eradicating Textbook School Mathematics (TSM)
It is apropos to begin this blog with a short discussion of Textbook School Mathematics (or TSM). Continue reading →