Class 11-12

There’s a concept that’s crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It’s entropy, and it’s notoriously difficult to wrap our heads around. Jeff Phillips gives a crash course on entropy.

How modern times imposes one way of learning and doing things on kids, thus taking away their natural, inborn creative instincts? This short award winning, critically acclaimed animation film, is a reflection of this bitter truth, the homogenous industrial way of education and living, which we blindly believe in.

The assignment that you ask your learners to complete is not same as a practice worksheet.

A good assignment in any subject at any level should take into consideration the following points.

1. An assignment should have a well defined objective.

Geography is one of the oldest disciplines in the world. Rich contributions from Eratosthenes, Ptolemy, Al-Masudi, Al-Biruni, Ibn Battuta, Ibn Khaldun and later by Carl Ritter, Emanuel Kant (yes the philosopher), Vidal la Blache and many more made it a discipline to investigate and unravel the mysteries. The classroom teaching of geography almost always fails to capture that awe of this wonderful subject.

Today is Charlie Chaplin's birthday. He made you smile by being silent through out his illustrious career. But then, in 1940 he made 'The Great Dictator' where he spoke only once. Not a homily. But that which trancends region, religion, language, caste, creed & colour. A voice of conscience which was pained at the happenings of that era. We are including Melody Sheep version of the speech which remixed the images from the contemporary happenings. Relevant as ever.

In this episode of "How To Prove It", we discuss some more applications of Ptolemy's theorem.

This article is the first in a series dealing with inequalities. We shall show that in the world of algebra as well as the worlds of geometry and trigonometry, there are numerous inequalities of interest which can be proved in ways that are easy as well as instructive.

Here's an addendum to Fagnano's Problem.

When we see a problem on maximization or minimization, we generally think of calculus or linear programming. But in reality, problems are never bound to a specific tool and we are always free to try something different, like high school geometry and even a bit of physics! Here we are looking at Fagnano's problem.

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