Teacher Development

Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subscripts ... it can look like an illegible jumble. Where did all of these symbols come from? John David Walters shares the origins of mathematical symbols, and illuminates why they’re still so important in the field today.

In early April this year, newspapers and online websites were agog with the news that astronomers had obtained the first image of a black hole known to reside in a distant galaxy called M87. Why did this image cause such a stir?
Beena D B works as a Resource Person at the School of Arts and Sciences, Azim Premji University, Bengaluru. In this interview, she shares her experiences and insights on a life in science.

Children aren’t empty vessels. They come to class with amusing, surprising and deep-rooted ideas, inconsistent with contemporary science. It is imperative for a teacher to recognise this and initiate a process of change as such ideas could hamper learning.

Urban areas are often viewed as a source of ecological ‘problems’ rather than solutions. This article presents the rationale, pedagogical implications, and student responses to a school project aimed at raising and sustaining an urban terrace farm. Through this example, it explores some themes that educators could engage with in urban areas.

How do we know the distance of the sun from the earth? Or that of the nearest galaxy to our own? This article introduces four methods that astronomers use to measure distances in space.

Trees live close to us — in our backyards, gardens, fields, and road-sides. Their lives are intimately connected to the environment they grow in, an environment we know is changing. How are trees coping with the changing climate and weather patterns?

This article explores embodied learning in the science classroom. The authors use research in science education to illustrate, practically, how teachers can create immersive, full-body thinking and knowing experiences for their students.

This article presents a few simple activities, with handmade toys and optical illusions, that explore ways in which our brain and eyes work together to perceive the world.

Human skin type varies from person to person. However, there are some facts that apply to all skin types. 

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