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#ITeachmath
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25 x 32 use money! (Quarters)
4 quarters in 1 dollar
25 x 4 x 8
100 x 8
800
#MathStratChat #iTeachMath
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It's time for #MathStratChat!
Rules: post your favorite or a clever solution! It's also fun to comment on other's strategies.
Tell us about your reasoning.
Like/share so others can see!
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
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Pyplot figure of atmospheric CO2 data oscillating while increasing from 1958 to present. A model is well-fit to the data.
Another student sent an update on modeling the atmospheric CO_2 data, and was able to get the model:
a sin(b(x +c)) + d + ex +f x^2
to fit quite nicely.
#ITeachmath #mtbos
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We actually do math in our math PD, and the same is true for most of our podcast episodes. That shouldn't be weird.
#MathIsFigureOutAble #MTBoS #ITeachMath #MathEd
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The top left main image shows a square-like geometric design created with pattern blocks. The design has two components. At the center is an orange square surrounded by four green triangles, then four tan rhombuses, eight orange squares and four green triangles. Around this center are four flower-like arrangements. Each “flower” is made by placing four yellow hexagons and four tan rhombuses around a central orange square. The images along the bottom and on the right show the progression of the design.
New pattern block play for April! Using squares and rhombuses from classic pattern blocks to create designs. #PatternBlocks #iTeachMath
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New workshop just dropped:
Developing Mathematical Reasoning in Companion Animals. 🐾
Because reasoning > memorizing… even for pets.
Happy April Fool’s Day! 😄
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
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Join us with Dani Jackson to hear about explicit instruction for problem solving on Thursday, April 2 at 7 PM EST www.facebook.com/math4allshow or tinyurl.com/5hdrd5zd @mollyvokey.bsky.social @heidisabnani.bsky.social #iteachmath #iteachmaths #math4all
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Use 9 different factors of 510 in a 3 by 3 grid. The numbers in the top row add to 42. The numbers in the middle row add to 16. The numbers in the bottom row add to 188. The numbers in the left column add to 186. The numbers in the middle column add to 50. The numbers in the right column add to 10.
Start your day with this #yohaku. Fill in cells with 9 different factors of 510 to get totals shown in each row/column. #mathsky #iTeachMath
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Celebrate National Play Outside Day tomorrow by getting your students outside to do real Statistics! 🌤️🏃♀️🌿Check out this Pool Noodle Toss Lab that I created with @diffitapp.bsky.social tinyurl.com/2frtvcrb #DiffitSpringRemix #DiffitAmbassador #StatsChat #MTBoS #iTeachMath #EduSky
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My book is almost here!
Use the code 26SMA2 at routledge's website and get 20% off its price!
Starting today until 30 September 2026.
Don't miss it!
@routledgebooks.bsky.social
#math #geometry #puzzle #book #MasteringGeometryPuzzles
#BookSky #iTeachMath #EduSky
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Puzzle #2
The number 403 is created out of fifteen matchsticks.
Modify the position of two matchsticks to get a number divisible by 9.
This puzzle was published on @nytimes.com and on @theguardian.com.
Check the solution in the comments.
#math #matchstick #puzzle #iTeachMath #EduSky
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Law enforcement and corrections agencies have observed false-positive percentages of 15, 38 and even 91. #iTeachMath
wapo.st/4sJIoK4
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#TryThisTuesday
The coolest, most effective instructional routine out there - Problem Strings!
What does this series make you think about?
Post a pic of your board!
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
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Image of a hand-written 0, composed of pixel values, next to an image of a 1 also composed of pixel values.
In #MathsToday we started our feature-engineering project with 0s and 1s from MNIST
Given a spreadsheet or DataFrame where each row contains 784 pixel values representing an image of a hand-written digit, how can we distinguish a 0 from a 1?
#ITeachMath #mtbos
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If your students liked math until the alphabet got involved, there's a good chance they're stuck in additive thinking.
#MathIsFigureOutAble #MTBoS #ITeachMath #MathEd
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Adding each term in the Maclaurin series for e^x, one term at a time! #EduSky #ITeachMath
Made in #Desmos
www.desmos.com/calculator/u...
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This problem is inspired by the 1977 Canadian Math Olympiad, Q7.
a). How many ways are there to walk along the grid lines from the bottom left to the top right without visiting any intersection more than once?
#math #maths #ProblemSolving #iteachmath #mathsky
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This image shows pattern block designs arranged in a 4 by 4 grid, with the center four squares merged to highlight a larger design. It features 13 unique pattern block creations from March. The images show six double hexagons arranged around a central hexagon with six regular hexagons added to fill in the gaps between the double hexagons, completing the radial pattern.
Looking back at some of the shapes and designs from my pattern block play in March! #21CenturyPB #iTeachMath
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This image shows pattern block designs arranged in a 4 by 4 grid, with the center four squares merged to highlight a larger design. It features 13 unique pattern block creations from March. The images show six double hexagons arranged around a central hexagon with six regular hexagons added to fill in the gaps between the double hexagons, completing the radial pattern.
Looking back at some of the shapes and designs from my pattern block play in March! #21CenturyPB #iTeachMath
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TIL: A German colloquialism for "quadratic formula" is Mitternachtsformel which translates, literally, to "middle-of-the-night-formula". That is, a formula which is so deeply memorized that if awakened in the middle of the night, the student could recite it. #iteachMath #MathsToday
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Exciting - we're kicking off the spring 10-week quarter at Stanford with another session of 1st/2nd grade #mathCircle. Our first topic is Perfect Rulers - but not like these majesties. I'll see if the children can have "measured" guesses at to what this topic is :-) . #mtbos #iteachmath #mathisfun
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What does explicit instruction look like for problem solving? Dani Jackson joins us on Thursday, April 2 at 7 PM EST www.facebook.com/math4allshow or tinyurl.com/5hdrd5zd @mollyvokey.bsky.social @heidisabnani.bsky.social #iteachmath #iteachmaths #math4all
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It's time for your #TapeDiagramTuesday extra challenge!
Model your solution strategy with a tape diagram.
Then share it with the community!
#iTeachMath
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It's time for #TapeDiagramTuesday!Here's what to do:
1. Pick a problem.
2. Solve it using a tape diagram to model your thinking.
- - - - OR - - - -
Give the problem to your students to model.
3. Share your model with
#TapeDiagramTuesday #iTeachMath
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Money + give & take = fantastic strategy Allison!
How do you reason about problems like these?
#MathIsFigureOutAble #MathStratChat #MTBoS #ITeachMath #MathEd
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In #mathstoday 9th graders are reviewing ideas about transformations of f(x) such as f(x-2) and f(x/3) #iteachmath
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This image shows pattern block designs arranged in a 4 by 4 grid, with the center four squares merged to highlight a larger design. It shows 13 unique pattern block creations from my pattern block play in March, featuring six double hexagons arranged around a central hexagon.
Looking back at some of the shapes and designs from my pattern block play in March! #21CenturyPB #iTeachMath
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This image shows pattern block designs arranged in a 4 by 4 grid, with the center four squares merged to highlight a larger design. It shows 13 unique pattern block creations from my pattern block play in March, featuring six double hexagons arranged around a central hexagon.
Looking back at some of the shapes and designs from my pattern block play in March! #21CenturyPB #iTeachMath
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