Use Study Skills at UCL to practise English with learning materials covering vocabulary, grammar and everyday language.

Use Dictionary.com to look up English words, check meanings and support vocabulary learning.

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From rockets to stock markets, many of humanity's most thrilling creations are powered by math. So why do kids lose interest in it? Conrad Wolfram says the part of math we teach — calculation by hand — isn't just tedious, it's mostly irrelevant to real mathematics and the real world. He presents his radical idea: teaching kids math through computer programming.

The complex issues we face today require a key set of problem-solving skills. How can schools best prepare students to be ready to take on these challenges? How can they help ensure students have the "deeper learning" skills of critical thinking, collaboration, communication, and metacognition, as well as have the content knowledge they need? Presented by Marc Chun, Education Program Officer at the Hewlett Foundation.

Education scientist Sugata Mitra tackles one of the greatest problems of education — the best teachers and schools don't exist where they're needed most. In a series of real-life experiments from New Delhi to South Africa to Italy, he gave kids self-supervised access to the web and saw results that could revolutionize how we think about teaching.

Salman Khan talks about how and why he created the remarkable Khan Academy, a carefully structured series of educational videos offering complete curricula in math and, now, other subjects. He shows the power of interactive exercises, and calls for teachers to consider flipping the traditional classroom script — give students video lectures to watch at home, and do "homework" in the classroom with the teacher available to help.

Use Bab.la to look up English words, check meanings and support vocabulary learning.

Some kids learn by listening; others learn by doing. Geoff Mulgan gives a short introduction to the Studio School, a new kind of school in the UK where small teams of kids learn by working on projects that are, as Mulgan puts it, "for real."

Alisa Miller, head of Public Radio International, talks about why — though we want to know more about the world than ever — the media is actually showing us less. Eye-opening stats and graphs.

Our lives, our cultures, are composed of many overlapping stories. Novelist Chimamanda Adichie tells the story of how she found her authentic cultural voice — and warns that if we hear only a single story about another person or country, we risk a critical misunderstanding.

In this thoughtful talk, David Puttnam asks a big question about the media: Does it have a moral imperative to create informed citizens, to support democracy? His solution for ensuring media responsibility is bold, and you might not agree. But it's certainly a question worth asking ... (Filmed at TEDxHousesofParliament.)

Use BBC Pronunciation Tips to practise listening to authentic English and build pronunciation and vocabulary.

Use Elfs Interactive Learning. to practise English with learning materials covering vocabulary, grammar and everyday language.

Kevin Allocca is YouTube's trends manager, and he has deep thoughts about silly web video. In this talk from TEDYouth, he shares the 4 reasons a video goes viral.

Written by the educators who created Covering World News, a brief look at the key facts, tough questions and big ideas in their field. Begin this TED Study with a fascinating read that gives context and clarity to the material.

The Story of Electronics explores the high-tech revolution's collateral damage—25 million tons of e-waste and counting, poisoned workers and a public left holding the bill. Host Annie Leonard takes viewers from the mines and factories where our gadgets begin to the horrific backyard recycling shops in China where many end up. The film concludes with a call for a green 'race to the top' where designers compete to make long-lasting, toxic-free products that are fully and easily recyclable.

Western countries throw out nearly half of their food, not because it’s inedible — but because it doesn’t look appealing. Tristram Stuart delves into the shocking data of wasted food, calling for a more responsible use of global resources.

Less than 10% of plastic trash is recycled — compared to almost 90% of metals — because of the massively complicated problem of finding and sorting the different kinds. Frustrated by this waste, Mike Biddle has developed a cheap and incredibly energy efficient plant that can, and does, recycle any kind of plastic.

Capt. Charles Moore of the Algalita Marine Research Foundation first discovered the Great Pacific Garbage Patch — an endless floating waste of plastic trash. Now he's drawing attention to the growing, choking problem of plastic debris in our seas.

Use Wordnik to look up English words, check meanings and support vocabulary learning.

New York City residents produce 11,000 tons of garbage every day. Every day! This astonishing statistic is just one of the reasons Robin Nagle started a research project with the city's Department of Sanitation. She walked the routes, operated mechanical brooms, even drove a garbage truck herself—all so she could answer a simple-sounding but complicated question: who cleans up after us?

Use Rhymes to practise English with learning materials covering vocabulary, grammar and everyday language.

Use Reverso to look up English words, check meanings and support vocabulary learning.

In this funny and insightful talk, builder Dan Phillips tours us through a dozen homes he's built in Texas using recycled and reclaimed materials in wildly creative ways. Brilliant, low-tech design details will refresh your own creative drive. (Filmed at TEDxHouston.)

The Internet Grammar of English is an online course in English grammar written primarily for university undergraduates. However, we hope that it will be useful to everyone who is interested in the English language. IGE does not assume any prior knowledge of grammar.

Use English Central to practise listening to authentic English through video, television and cultural content.

Learn Languages with music videos

A blog post from a UCL History lecturer explaining how to write a good History essay. Much of the advice applies to other subjects too.

Use Forvo to support your English study: pronunciation in various languages