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#numbers #geography #flags #birthdays 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 · 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
