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At Right Angles November 2020


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Beyond Four Walls - Contain a mathematician in a room and you can be sure that some thinking on quadrilaterals will happen! Our second issue during the pandemic has much to keep you absorbed and happily engaged with problems- of the mathematical kind. From age digit reversals to an algorithm for evacuating a room - there is material for every age group. We begin with the all important question: Why Should You Study Mathematics? And we also carry a review of the Classes I-III Sikkim Mathematics Textbooks, the development of which our URC-PDP played such a key role in. Do revert with your feedback on [email protected]

   
Editorial

Sneha Titus
Editorial


 

Content


Content


 

Features

Rahul Tikekar
Why Should You Study Mathematics?


 

Classroom

James Metz
Age Digit Reversals


 
 
Anupama S.M.
BODMAS: Much ado about nothing?

 

Sachin Vyavahare & Wallace Jacob
Cryptarithms


 
 
Swati Sircar
Definitions changing through time


 

Mohammad Umar
The Height of a Tree

 

Student Corner


Uttkarsh Kohli
The Mystical Number 2997 (Kohli’s Number)


 
 
Rahil Miraj
Extension of an INMO Geometry Problem


 

Deens Academy Math Club
The N-Queens Problem


 
 
Tech Space


Eyal N. Shavit
Deriving the Golden Ratio Using a Scientific Calculator


 

Anmol Singh Dhaliwal, Antara Ghosh, Naman Mansukhani
A Cellular Automata Model for Predicting Crowd Movement during Evacuation


 

Problem Corner


A Ramachandran
Miscellaneous Problems for the Middle School

 
 
Prithwijit De & Shailesh Shirali
Problems for the Senior School

 

A S Rajagopalan
Bisecting the Perimeter of a Triangle using Ruler and Compass


 
 
Kousik Sett
A Very Special Congruency Problem


 

Prithwijit De
Playing with Quadrilaterals


 
 

Reviews


Anupama S.M. and Swati Sircar
Developing Textbooks for Primary Mathematics


 
 
Padmapriya Shirali
Finding Mathematics, Playing Mathematics, Experiencing Mathematics


 
Pullout


Padmapriya Shirali
Quadrilaterals

 


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