# All boards

## Oliver Sacks: the doc on the bike and in the brain

Oliver Sacks was a neurologist who brought the brain to popular imagination in latter part of the 20th century. In the article, the author presents Sacks’s work on brain phenomena, ranging from hallucinations and colour blindness, against the  backdrop of his life that was as interesting as the brains and people he studied. Also highlighted is Sacks’s remarkable ability to connect with and communicate about his ‘patients’ in a very humane way.

Kriti Gupta

Khilendra Kumar

## Elementary, my dear Watson!

Are you looking for a book that offers a fun, new perspective to science? In this review, join a mother and son as they share their experiences of one such book, called The Agenda of the Apprentice Scientist.

## Language and Arts Interventions | The Nizamuddin Model

Jyotsna Lall and Hyder Mehdi Rizvi

## The Idea of Pedagogy of Connect | A Strategy

Joyeeta Banerjee

Aims of ‘connecting’ as a strategy

## Tied with a Single Thread | Children, Community and Teachers

Jagmohan Singh Kathait

## Why Children Fear Division

Gomathy Ramamoorthy

## A Note on Geometric Construction

The whole of plane geometry is based on two figures, the straight line and the circle. Both these figures are defined by two points, say A and B. For drawing these figures, two instruments are available: (i) an unmarked straight edge for drawing a straight line joining A and B and, if necessary, extending the straight line beyond the segment AB on both sides; (ii) a compass for drawing a circle with one of the points A (or B) as centre and passing through the other point B (or A).

## The Generalised Pythagoras Theorem – Another Proof

In this short note, we present a proof of the generalised Pythagoras theorem. We use the ‘ordinary’ Pythagoras theorem for the proof.

Theorem. In any triangle ABC, we have:

AC2 + BC2 > AB2 <--> C < 90 ,

AC2 + BC2 < AB2  <--> C > 90◦ .

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