# Artículos sobre Algebra

## Why expanding access to algebra is a matter of civil rights

Districts across the country have struggled to improve access and diversity in advanced math classes for years. A new approach offers hope.

## Why are algorithms called algorithms? A brief history of the Persian polymath you’ve likely never heard of

Our modern lives are influenced by algorithms at every step. We can trace this influence back more than 1,200 years ago – to a Muslim mathematician.

## A brief illustrated guide to ‘scissors congruence’ − an ancient geometric idea that’s still fueling cutting-edge mathematical research

This is a story about geometry, algebra and many different dimensions, best read with construction paper, scissors and tape on hand.

## X marks the unknown in algebra – but X’s origins are a math mystery

How did the letter x get its enduring role as a symbol of the unknown? A mathematician explains why it’s hard to say for sure.

## Declines in math readiness underscore the urgency of math awareness

Nearly four decades after President Ronald Reagan proclaimed the first National Math Awareness Week, math readiness and enrollment in college math programs continue to decline.

## ‘Numberless math’ gets kids thinking about and visualizing algebra

Working with moveable pictures can help children learn an algebra rule: Whatever you do to one side of the equation, you need to do to the other. Here’s how teachers or caregivers can lead this.

## The simple reason a viral math equation stumped the internet

When the equation 8÷2(2+2)=? is written properly and includes a multiplication sign before the first bracket, the answer is clear.

## Bob Moses played critical role in civil rights organizing and math literacy for Black students

The Algebra Project – a long-standing initiative to teach algebra to Black students who might not otherwise take it – sprang from Bob Moses’ work as a civil rights activist, a historian recounts.

## The proposed new maths curriculum doesn’t dumb down content. It actually demands more of students

The proposed maths curriculum would result in a deeper understanding of key concepts. It expects students to explain their maths reasoning rather than present their answer without justification.

## Is mathematics real? A viral TikTok video raises a legitimate question with exciting answers

What did Pythagoras do with all those triangles, anyway?

## Why I teach math through knitting

In this professor’s class, there are no calculators. Instead, students learn advanced math by talking, drawing pictures, playing with beach balls – and knitting.

## Five ways ancient India changed the world – with maths

High school students can blame ancient India for quadratic equations and calculus.

## Nothing matters: how the invention of zero helped create modern mathematics

Turning zero from a punctuation mark into a number paved the way for everything from algebra to algorithms.

## How math education can catch up to the 21st century

By embracing a style beyond the typical classroom lecture, math education can serve all of our students better.

## ‘The Math Myth’ fuels the algebra wars, but what’s the fight really about?

A new book criticizes how and what American math classes are teaching. Singling out math instruction in this age of high-stakes testing and accountability is unsporting.

## How to solve a Rubik’s cube in five seconds

Don’t worry – there are only 43,252,003,274,489,856,000 configurations.

## Domino’s square pizza is value for money – with the right toppings

Consider a standard pizza box containing a standard circular pizza. How much more would you be willing to pay for a square pizza that filled the box? Clearly the square pizza contains more pizza: but is…