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For decades, "graphing calculator" has been synonymous with, "Texas Instruments." Thus collaborating/creating with them is a huge honor and milestone for Yay Math. 

Algebra I: Smart Space Video Lessons

Ratios & Proportions: Algebra I Video Lesson

Texas Instruments Education
Ratios & Proportions: Algebra I Video Lesson
Ratios & Proportions: Algebra I Video Lesson

Ratios & Proportions: Algebra I Video Lesson

17:54
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Introduction to Slope: Algebra I Video Lesson

Introduction to Slope: Algebra I Video Lesson

20:16
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Intro to Transformations: Algebra I Video Lesson

Intro to Transformations: Algebra I Video Lesson

22:01
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Transformations Continued: Algebra I Video Lesson

Transformations Continued: Algebra I Video Lesson

24:43
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Ready, set, LAUNCH! Here is a live YouTube Q&A event that takes place Friday, Sept. 18, at 9AM PST, 12PM EST. I/we'll be ready to take questions, and have fun interacting!

Back in my high school days, I figured out a way to mathematically graph an image of a daisy, using my trusty TI-82. I did it in the hopes of impressing girls. For some reason, it didn't work. At least I think it's pretty:

Robert trying to use his TI-84 calculator in high school to connect.

Then for literally decades, I used TI calculators, either as a student, or teacher. The amount of good vibes I have for this company is sky high. So you can imagine my joy when they reached out and invited me to collaborate with them. It's so cool: all of a sudden, TI and Yay Math become partners.

Our project: a 5-video mini-series, encompassing the critical Algebra concepts of Ratios, Proportions, Slope, Transformations, and Functions. Big props to my co-presenter at TI, Curt Brown, who not only helps the viewers visualize the ideas so clearly and intelligently, but he's also basically a wonderful human being. The chemistry between us was instant and palpable throughout. 

Fun fact: to provide context for the lesson, I share what is often seen as private and privileged information: the average time I spend on my phone. (Please don't judge me lol.)

Some social media posts showcasing our work:

Yay Math is a free and openly available public service. Any contribution towards this movement is deeply appreciated.

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Yay Math will always stay connected to the people. Reach out and share your story! This is not a math help line. It's a way for us to interact and say hi, directly.

© 2025 Yay Math™ videos and courses for Algebra, Geometry, Algebra 2, Statistics, and Trigonometry

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