# lastdayofclass digitalclassphoto proudteacher mtbos math pixelart geometry maths proof stringtheory physics cube sphere circles nctm sketched secondgrade imissmykids scritturebrevi ventaglidiparole edtech mathedtech figurethat proofwithoutwords hsmath collegemath trigonometry mathed msmath trig geomchat keynote everyonecancreate edchat appleedu appleeduchat 3d calculator augmentedreality 3dmodeling stem steam isaacnewton classicalmechanics optics calculus circle desmos funwithdesmos ipad arkit 3dmodel

Three sections of AP Calculus completely virtually on a semester schedule? Yep, we did it! So proud of these students for their determination and willingness to adapt!

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2021-01-29

1 cyclic quadrilateral + 4 perpendiculars = 😮? How to prove? 🤔 Source: . https://t.co/XF5cVNRTkE

11 43
2020-12-21

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A local 2D cross-section of the real 6D manifold, known in as the Calabi-Yau quintic manifold.

In algebraic geom., a Calabi–Yau manifold is a particular type of manifold which has properties yielding applications in theoretical

Img: Wiki

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2020-09-10

1 triangle + 1 cevian + 3 circumcenters = 4 concyclic points! How to prove? 🤔 Source: . https://t.co/rRs3VoE0Y1

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2020-07-09

Stereographic projection of circles by .

Consider the 8 vertices of the as points on the unit then make (spherical) centered on those points with radii chosen so that the circles are just tangent.

More➡️https://t.co/NjifiSyj0Y


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2020-06-16

This was so fun last year, we used 's idea for his skee ball problem that I got from his session. Thanks Zak. It was such a fun task- I it. I love how their solutions looked so different ⚾️🥎🏀⚽️#secondgrade

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2020-05-02

"...it's a mysterious and marvelous fact that our universe obeys laws of nature that always turn out to be expressible in the language of calculus as sentences called differential equations."

- , 'Infinite Powers'.



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2020-04-29

Interesting phenomenon that occurs in any triangle. How can we explain the occurrence of the angle bisector? 🤔 (Source: ) https://t.co/tpusqTwVCB

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2020-03-19

🌊Diving for Numbers🥽 This animation is a SUPER fun way to get you feet WET with addition! Grab the file to make your own changes!

Get the file here - https://t.co/NJwE8CVoOn

3 13
2020-03-13

Go ahead. Take a quick 0:41 break and experience traveling along the one & only side of a Möbius Strip. Created in & shown here in https://t.co/1vyp2ODIwf

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2020-03-05

Atypical means for Ss to explore & discover laws of exponents? 🤔 Which surfaces match? Which don't? Could we use this logic just like many Ts have their Ss test for coinciding parabolas to see if quadratics are correctly factored?

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2020-02-28

What causes a conic section to be a parabola? 🤔 Quick cause & effect demo in Why not give Ss opportunities to tell us what they see vs. us immediately telling them what to see? https://t.co/00lmQ6Y8Xc. For all conics: https://t.co/y0lB6Vf0FS.

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2020-02-27

An unusual (not often seen) sufficient condition that guarantees a quadrilateral to be a parallelogram. How to prove? 🤔 Source: . https://t.co/WG1ElKNV2v

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2020-02-15

was born on Jan 4, 1643 (acc. to Gregorian calendar).
A key figure in the scientific revolution, his 'Principia Mathematica' laid the foundations of

He made seminal contributions to and co-developed with Leibniz.

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2020-01-05

Added a few more characters (PigPen, Woodstock, & Sally) to this year's holiday Peanuts dance. 🙂 https://t.co/bf8fDV4TV7

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2019-12-26

cosine waves with square cross sections transformed into cosine waves with rhombus cross sections having interior angles measuring 60 deg & 120 deg. Created in on

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2019-11-29