math-problems.bsky.social @math-problems.bsky.social · 28/08/2026For the first day of school, 9th graders in honors math worked on these problems in groups to practice discussing, asking questions, and trying out problem solving strategies. #iteachmath docs.google.com/document/d/1...docs.google.com 010
math-problems.bsky.social @math-problems.bsky.social · 11/08/2026In #mathstoday we had fun playing a modified version of "Statement Snap" from NRICH (nrich.maths.org/problems/sta...) with incoming 9th graders to review vocabulary. #iteachmathnrich.maths.orgStatement Snap | NRICH 010
math-problems.bsky.social @math-problems.bsky.social · 05/06/2026The activity is part of a 2 week environmental science curriculum we do with 9th graders in May. 000
math-problems.bsky.social @math-problems.bsky.social · 26/05/2026Using clinometers and #trigonometry to help calculate the height of a tree; then using the height and the trunk circumference to estimate the amount of carbon stored in the tree. #iteachmath 160
math-problems.bsky.social @math-problems.bsky.social · 01/05/2026Writing the new coordinates of a point rotated around a circle #iteachmath #geometry 020
math-problems.bsky.social @math-problems.bsky.social · 01/05/2026In #mathstoday we are continuing to review special right triangles and trigonometry #geometry #iteachmath 020
math-problems.bsky.social @math-problems.bsky.social · 28/04/2026In #mathstoday we are reviewing ideas related to 30-60-90 triangles and trigonometry #iteachmath #geometry 060
math-problems.bsky.social @math-problems.bsky.social · 27/04/2026In #mathstoday we are reviewing some integration techniques #calculus #iteachmath 3111
math-problems.bsky.social @math-problems.bsky.social · 23/04/2026Central angles of regular polygons #iteachmath #geometry 030
math-problems.bsky.social @math-problems.bsky.social · 20/04/2026In #mathstoday we are using special right triangles to help find exact values for sin 15 and cos 15 without a calculator #geometry #iteachmath 2263
math-problems.bsky.social @math-problems.bsky.social · 17/04/2026In #mathstoday 9th graders are deriving the formula for the Lateral Surface Area (LSA) of a cone #geometry #iteachmath 091
math-problems.bsky.social @math-problems.bsky.social · 17/04/2026Perhaps a different prompt could be something like: "Use algebra to transform the first expression into the second expression". 110
math-problems.bsky.social @math-problems.bsky.social · 17/04/2026Area of a trapezoid formula and similar triangles #geometry #iteachmath 251
math-problems.bsky.social @math-problems.bsky.social · 15/04/2026Alphabet relay in #geometry to brainstorm topics related to the final exam next month #iteachmath #mathstoday 020
math-problems.bsky.social @math-problems.bsky.social · 11/04/2026Clock angles problem (based on www.reddit.com/r/mathpuzzle...) #geometry #iteachmath 020
math-problems.bsky.social @math-problems.bsky.social · 10/04/2026#geometry game: "Estimating angles" from NRICH #iteachmath nrich.maths.org/estimatingan...nrich.maths.orgEstimating Angles 010
math-problems.bsky.social @math-problems.bsky.social · 10/04/2026#numbers #geography #flags #birthdays 010
math-problems.bsky.social @math-problems.bsky.social · 10/04/2026#geometry game: "Square It" from NRICH - First player to form the vertices of a square wins #iteachmath nrich.maths.org/squareitnew/...nrich.maths.org 010
math-problems.bsky.social @math-problems.bsky.social · 09/04/2026Demonstration of Triangle Sum #iteachmath #geometry 032
math-problems.bsky.social @math-problems.bsky.social · 07/04/2026Diagrams for 2D #geometry topics #iteachmath docs.google.com/document/d/1... 031
math-problems.bsky.social @math-problems.bsky.social · 02/04/2026Definite and Indefinite integral dominoes from math.colorado.edu/activecalc1/... #calculus #iteachmath 044
math-problems.bsky.social @math-problems.bsky.social · 02/04/2026In #mathstoday we are looking at calculating volumes by cross-section #iteachmath #calculus 020
math-problems.bsky.social @math-problems.bsky.social · 30/03/2026In #mathstoday 9th graders are reviewing ideas about transformations of f(x) such as f(x-2) and f(x/3) #iteachmath 081
math-problems.bsky.social @math-problems.bsky.social · 02/03/2026From the Mathematics of Christmas book by Fry & Evans pg. 84, when describing the Ham Sandwich Theorem: 120
math-problems.bsky.social @math-problems.bsky.social · 27/02/2026In #mathstoday, we are discussing u-sub vs guess and check when evaluating integrals #calculus #iteachmath 2121
math-problems.bsky.social @math-problems.bsky.social · 25/02/2026*Visual based on problem #720 from exeter.edu/app/uploads/... 010
math-problems.bsky.social @math-problems.bsky.social · 25/02/2026in #mathstoday looking at a visual* for the line and parabola through the point (0, 1) that best fit the graph of y = cos x #iteachmath 130
math-problems.bsky.social @math-problems.bsky.social · 23/02/2026In #mathstoday learning about integration by parts #calculus #iteachmath 090
math-problems.bsky.social @math-problems.bsky.social · 11/02/2026In #mathstoday, ninth graders are using the "socks and shoes" method to find the equations of inverse functions #iteachmath 280
math-problems.bsky.social @math-problems.bsky.social · 04/02/2026In #Mathstoday, to apply their knowledge about perpendicular bisectors and angle bisectors of a triangle, students are using #Desmos to make a graph of a triangle, its circumcircle, and its incircle. #iteachmath #geometry 030
math-problems.bsky.social @math-problems.bsky.social · 28/01/2026Sample solutions: shorturl.at/veF19shorturl.atkeyftcp2.pdf 000
math-problems.bsky.social @math-problems.bsky.social · 28/01/2026Today in #calculus learning about the Fundamental Theorem of Calculus Part 2 (taking the derivative of the integral of a function) shorturl.at/gD1VW. #iteachmath #mathstodayshorturl.atFTC Part 2FTC Part 2 Last class, we learned about the Fundamental Theorem of Calculus Part 1: Today, we will learn about Part 2. Given the graph of f(t), explain why it makes sense that A(0) = 9π/4 Giv... 170
math-problems.bsky.social @math-problems.bsky.social · 23/01/2026Yes, it's a fun one to prove but only applicable to a situation where a triangle has 3 concurrent cevians! Ceva's theorem - Wikipedia share.google/i3XFwvJKKEeS...share.googleCeva's theorem - Wikipedia 000
math-problems.bsky.social @math-problems.bsky.social · 23/01/2026I used same-height triangles to label areas of the triangles in terms of x, and then I applied Ceva’s theorem: 110
Reposted by @math-problems.bsky.socialJames Handscombe @jameshandscombe.bsky.social · 09/01/2026So #MathsToday I found out that if you have four adjacent Fibonacci numbers e,f,g,h then eh and 2fg are two elements of a Pythagorean triple. 1,1,2,3 - 3 and 4 1,2,3,5 - 5 and 12 2,3,5,8 - 16 and 30 3356
math-problems.bsky.social @math-problems.bsky.social · 21/10/2025I am teaching calculus for the 3rd year, and would also love to access your warmup questions if you are willing to share! 000
Reposted by @math-problems.bsky.socialbenjamin dickman @benjamindickman.bsky.social · 04/08/2025precalc! freely available materials! great combination cc #iTeachMath ♾️ 1145
Reposted by @math-problems.bsky.socialDr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 30/12/2024Back on Twitter, my most viewed tweet was a link to my "math pep talk"—a video I made for my students that now has 23K views 👀 m.youtube.com/watch?v=kenf... There's a lot to expand on in that video, like structural barriers to success in math. But I'm sharing it again anyway. #MTBoSm.youtube.comSo, you think you're bad at math...YouTube video by Courtney Gibbons 28117
Reposted by @math-problems.bsky.socialHowie Hua @howiehua.bsky.social · 19/11/2024I turned my most boring math lesson into one of my most engaging ones. Here's how: #edusky #iteachmath 1011122
Reposted by @math-problems.bsky.socialbenjamin dickman @benjamindickman.bsky.social · 03/12/2024Great wonder and exploration here! There's so much fun to have with quadratics; here are just a few nonroutine problems I put into Desmos folders 📂: www.desmos.com/calculator/2... #iTeachMath ♾️desmos.comParticular Parabola Problems 4193
