Tags » Geometry


November 25 – 329.

Geogebra. This sangaku asks to find the size of the circles in term of each other. 7 more words

One Image A Day - 364 Days

Circles Overlap

Circle has center with radius , and circle has center with radius . The circles overlap in the first quadrant. What is the area of this overlap? 48 more words

Problem Solving

Geom: Nov 24th

Today was the first day of review for the Chapter 10 test on Tuesday (12/01). Below you can find the key to the review and a blank copy in case you left it on your desk without doing a single problem…. 18 more words


NCTM Comes to Music City

The National Council of Teachers of Mathematics held a regional conference in Nashville, TN last week. Since I live in Music City, this was too good an opportunity to pass up! 711 more words


Fractals in 6th Math with @kkleinNYC, Geometer's #Sketchpad, @Scratch, and pencils. @The_School #mathchat

I’ve had a deep love and respect for Geometer’s Sketchpad since I was first introduced to it in 1994 as an undergraduate Math major (and aspiring math teacher) at Bryn Mawr College. 226 more words

Euclidean Geometry 3

In this part we study the third ‘undefined term’ of EG.


Imagine a flat surface which is infinitely large and has no thickness at all. 371 more words

Elementary Geometry