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Joined July 2013
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219 Photos and videos
"Summer can become more than recovery time; summer offers something rare for math educatorsโan opportunity for renewal, creativity, and planning for focused professional learning."
Read NCTM President @LatrendaK's full message here: nctm.link/5ix2V
ALT Latrenda Knighten on a purple background featuring a summer reflection message from the NCTM president.
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Global Math Department ๐๐๐๐งฎ retweeted
๐ย I'm presenting!! - The Power of Curiosity: #MathPlay in Action. Mark your calendar & make plans to join me at @carlyandadamโs #STEMTeacherSummit on July 23-25, 2026
#ElemMathChat #MTBoS #ITeachMath #STEM #steam #EdTech #EdChat #Math
๐stemteachersclub.com/Carly-Aโฆ
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Global Math Department ๐๐๐๐งฎ retweeted
Jun 2
Mathematics. Chaos. Dreams. Imagine sailing on a tiny boat, buffeted and swirled by this formulation.
Simone Attractor. Roller Coaster of the Gods. (a = 3.61, b = 4.24)
By Paul Bourke, paulbourke.net/fractals/simoโฆ, Used with permission
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Global Math Department ๐๐๐๐งฎ retweeted
Jun 1
I need a 5.2 mm drill bit. But I live in America.
What do I do?
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Global Math Department ๐๐๐๐งฎ retweeted
Jun 1
I am going to take a little break from posting daily pattern block designs. Creating and sharing them has been a rewarding journey, and I am grateful for everyone who has followed along. I will be back with more designs in the future! #21CenturyPB
ALT This image shows six pattern block designs arranged in a 3 by 3 grid with the four bottom left squares merged to highlight a larger design. The collection includes three wreaths and three snowflake designs created this year.
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Global Math Department ๐๐๐๐งฎ retweeted
Jun 2
Differentiation calculus(tangente line)
Visualization| Animation | Interactive applet
@geogebra
geogebra.org/u/daniel mentraโฆ
#geogebra #math #science #iteachmath #mtbos #visualization #elearning @bancoche #physics
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Global Math Department ๐๐๐๐งฎ retweeted
Jun 2
Problem of the Week 175!
Please do not comment the solution so others can work it out too. Instead, like this post or comment a thumbs up if you think you have the correct answer!
The solution will be posted in the comments on Thursday afternoon.
#Problem #UKMT #Maths
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โจ Sometimes students just need to see it.
Rectangular arrays make division visible, helping students recognize patterns and build confidence with their division facts.
๐งก Explore more at: fluency.amplify.com.
#MTBoS #ITeachMath
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What starts as a simple card game turns into rich mathematical thinking.
In this Krypto lesson, students test strategies, debate solutions, & build a deeper understanding of the order of operations, all while trying to beat the puzzle.
Try it out: nctm.link/NSqCZ
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Global Math Department ๐๐๐๐งฎ retweeted
May 27
All trigonometric functions from the unit circle
Visualization |Animation | Interactive applet
@geogebra
geogebra.org/u/daniel mentraโฆ
#geogebra #math #science #iteachmath #mtbos #visualization #elearning @bancoche
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Global Math Department ๐๐๐๐งฎ retweeted
May 28
Taught my students to play Spoons, or in my classroom Markersโฆ
Simple probability (get 4 of the same card)
Lots of action (everyone is moving)
Quick games (about 2-3 minutes per game)
And kids have to multitask for real (not their fake โoh Iโm multitaskingโ while using a phone)
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Global Math Department ๐๐๐๐งฎ retweeted
May 28
I have two shuffled 52 card decks. If I reveal one card from each deck at the same time and I exhaust the decks, what's the probability of flipping the same exact card at least once?
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Global Math Department ๐๐๐๐งฎ retweeted
Learning takes time and making mistakes is part of that journey - #MathPlay๐งฎ
#CodeBreaker๐ฆพ #ITeachMath #MTBoS #EdChat #Edtech #STEM
Get your copy today ๐๐
amazon.com/dp/1990566561
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Global Math Department ๐๐๐๐งฎ retweeted
May 21
Has anyone seen this puzzle? Saw it in our special education classroom
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Global Math Department ๐๐๐๐งฎ retweeted
May 23
Pythagora theorem in different geometries
Visualization |Animation | Interactive applet
@geogebra
geogebra.org/u/daniel mentraโฆ
#geogebra #math #science #iteachmath #mtbos #visualization #elearning @bancoche
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Global Math Department ๐๐๐๐งฎ retweeted
May 23
Floor(x) = the largest integer less than or equal to x.
e.g. Floor(3.1) = 3, Floor(3) = 3, Floor(2.9) = 2, Floor(-3.1) = -4.
Desmos can draw the graph of y = x^2, but not its chunky counterpart Floor(y)=(Floor(x))^2.
What should the chunky graph look like?
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Global Math Department ๐๐๐๐งฎ retweeted
May 23
Math, physics.
I love this plate because it feels like watching a civilization reverse-engineer the universe with nothing but ink, curiosity, and geometry. These diagrams feel like the marginalia of enlightenment: notes from an era when even a simple lens felt like a portal.
From: Table of Opticks, from the 1728 Cyclopaedia, Volume 2.
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Global Math Department ๐๐๐๐งฎ retweeted
May 23
Pattern block play! #21CenturyPB
ALT The main image shows a radial design created with 21st Century Pattern Blocks. It was built by arranging six octagons around a central star. The central star is made of six teal kites and twelve pink triangles. The first image along the bottom shows the octagon used in the design. The octagon is made of two pink triangles, two purple hexagons, three gray darts, three blue rhombuses, and fourteen teal kites. It also shows various stages of the design along the bottom and on the right side of the image.
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Global Math Department ๐๐๐๐งฎ retweeted
May 24
Here's a cool pattern: If we divide the first n positive odd numbers by the next n positive odd numbers, we will always get 1/3. Here's why this makes sense.
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Global Math Department ๐๐๐๐งฎ retweeted
Today STEP ss at Mercy University got to review for the Algebra 2 Regents using @SnorklApp - Loved the immediate feedback and multiple attempts (for growth mindset) ๐
#MathPlay #ITeachMath #MTBoS #EdTech #AI #STEM
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