This project brings together researchers in embodied cognition with researchers and technologists in inclusive design. With the PhET simulation Ratio and Proportion, learners can explore finding and ...

This project brings together a diverse group of technologists, including tinkerers, Makers, web developers, and inclusive designers. Building on the design of the PhET sim Ratio and Proportion, we ...

THE strict theory of geometrical proportion is difficult, and, with few exceptions, elementary students are quite unable to understand it. Opinions differ as to the compromise that is best suited for ...

The golden ratio is a geometric proportion that has been theorized to be the most aesthetically pleasing to the eye and has been the root of countless mysteries over the centuries. Now, an engineer ...

This month, my Scientific American column tackles the new era of vertical video—videos shot and viewed as tall, thin rectangles, suitable for smartphone screens without having to turn them. It’s kind ...

A GCSE Maths video about dividing into a given ratio. This video explains how to divide into a given ratio with worked examples. Find out more about GCSE Maths.

Leonardo’s Vitruvian Man with Golden ratios highlighted. Source: Credit: Modified by Rafael Tamargo Over 500 years ago, Leonardo da Vinci created illustrations for a book, On the Divine Proportion (De ...