Bob Batty

NEW VIDEO: The Progression of a Number Line in Grades K-2. gfletchy.com/progression-of… #iteachmath

It was a labor of love, but I finally finished creating eight new progression videos. Once they're out, I'll get them uploaded to my site. Thanks for the nudge to get these done. gfletchy.com/progression-vi…

@ScovilleMath @WODBMath

Math community!! Does anyone know what's going on with the Which One Doesn't Belong website?? @WODBMath Where will we go for this amazing prompts?!

In partnership with @MathforLove, we are excited to release Addition, Subtraction, and Division by Heart (coming soon), to join Mult. by Heart. This FREE resource is based in spaced repetition and provides visualizations for each fact. Get started at fluency.amplify.com!

Are you a K-12 teacher interested in learning about Desmos tools? Then you don't want to miss the session on "Desmos Playground" presented by @MsBeckerMaths @SimonSaysMath #miniconference #treatyourself

It's new, it's improved, it's got AI-generated explanations for why everything correlates. Today I'm launching the new Spurious Correlations: tylervigen.com/spurious-corre…

When using custom colors in @Desmos, RGB felt straight-forward enough, but I didn't have a clear grasp on what each component of HSV did. Turns out that it's much easier to visualize in 3D. Graph: desmos.com/3d/180b54127d

@MathTechCoach Vlookup is the best

Ohio's Mathematical Modeling and Reasoning (MMR) course advances student learning says research from Miami University's Center for Research and Evaluation. MMR Increased ACCUPLACER QAS scores compared to Algebra 2 students (1.89 points compared to 0.82 points). @ohioctm #Pathways

@JacksonTeachSci @martinmbauer That is fantastic!

@martinmbauer @batty314

I just learned that the first formula for calculating the n-th decimal digit of pi (without calculating all the preceding digits) has been found by Simon Plouffe in 2022 😲

@howie_hua law of cosines. It didn’t make sense until I had to teach it

What is the FIRST rule/theorem/formula that comes to mind when you think "I don't know why it works, I just memorized it" in regards to math class?

Excited to bring ideas back to the Ohio Council of Teachers of Mathematics with our fearless President @WukelichMath #TheFutureIsBright @ohioctm

@MidwestRegESC & Sidney City Schools Collaborate to Offer - Adaptive Schools Seminar @OESCA @OHEducation smore.com/z604g-adaptive… - Deadline to Register is 5/20

Happy #OpeningDay With baseball back in session, here's an activity by @seewins that tests your reaction time to different fastball speeds⚾. Do you have what it takes to make it to the majors?

@SimonSaysMath @Desmos Wow! That is fantastic!!!

My boy❤️

@Fouss I showed it to my fam today and my daughter got it on the second try. It took me four…🤦🏻‍♂️

My best one yet! Wordle 200 3/6 🟨🟨🟨⬜🟨 ⬜🟨🟨🟩🟨 🟩🟩🟩🟩🟩

🏈#OHSAA D5 STATE FOOTBALL: FINAL Versailles 2️⃣0️⃣ Kirtland 1️⃣6️⃣ The Versailles Tigers are state champions for the first time since 2003!