Teaching my sister

This summer I have been “tutoring” my sister Prarthana (9th grader), in mathematics and physics (and chemistry, despite my own scholarly-lessness in it!). To see how she is progressing, I thought it would be good to see how she approaches problems in timed assessments. I will be updating this post with the assessments I prepare…

A Construction Comes in Handy

One of my friends shared a geometry problem with me, already quite despondent after having tried it for long. The problem statement was : In the square below,  . Prove that . Unsurprisingly, I spent the first twenty minutes applying trigonometry and classical geometry to solve the problem. However, when the size of the calculations…