# AtRiA

## Make Tiling Patterns

tessellation of a flat surface is the tiling of a

## Revisiting Dimensions ~ An Aesthetic Appreciation

An aesthetic appreciation of mathematical dimensions.

When we talk about dimensions are they just another technical stuff that learners need to memorize?

Before answering that question, here is an activity. What can you make by folding the lines & glueing the edges of these 2D shapes?

## Revisiting Dimensions ~ an Introduction

Imagine a scenario. You guests are coming to meet you for the first time. How will you guide them home?

## Hill Ciphers: Solutions

Here are the the solutions to the exercises.

## Hill Ciphers

Cryptography is the science of making and breaking codes. Ciphers are methods for transforming a given message, the
plaintext, into a new form (ciphertext) unintelligible to anyone who does not know the key. In this article we explore an interesting cryptography method known as the Hill Cipher, based on matrices. We explore the method using the spreadsheet MS Excel to perform operations on matrices.

Take a look at some number problems from ancient India...

## The Chakravala Method

In this article the writer explains the working of the Chakravāla algorithm...

## Prime Numbers Visualized!

What better way to learn about primes and periodic curves than to play with visualizations of them? Rajkishore shares a resource created by Jason Davies and called 'Prime Number Patterns'  that allows your students to do just that.

## Dance, Factors, Dance

Here is a resource on factorization that is bound to capture the attention of your students. You can show your students a few and see what they come up with on their own too! The resource created by Stephen Von Worley was based on Brent Yorgey's Factorization Diagrams.

## Problems for the Senior School - March 2014

Here are some problems for students in Senior School. Also find the solutions to the problems

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