Trello is the easy, free, flexible, and visual way to manage your projects and organize anything, trusted by millions of people from all over the world.

Quia is pronounced key-ah, and is short for Quintessential Instructional Archive. Quia provides a wide variety of tools, including:

• Templates for creating 16 types of online activities using your own content.

• A complete online testing system with automatic grading, immediate feedback, and detailed reporting.

• Online surveys for gathering student and teacher feedback.

• A class Web page creator to share Quia activities and class announcements with students and parents.

• Access to millions of shared activities and quizzes in over 300 categories.

• ...and more!

Create a fun learning game in minutes – we call these ‘kahoots’. You can make a series of multiple choice questions or try our new game – Jumble. The format and number of questions are entirely up to you. Add videos, images and diagrams to your questions to amplify engagement.

TED is a nonprofit devoted to spreading ideas, usually in the form of short, powerful talks (18 minutes or less). TED began in 1984 as a conference where Technology, Entertainment and Design converged, and today covers almost all topics — from science to business to global issues — in more than 100 languages. Meanwhile, independently run TEDx events help share ideas in communities around the world. 

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TED is a global community, welcoming people from every discipline and culture who seek a deeper understanding of the world. We believe passionately in the power of ideas to change attitudes, lives and, ultimately, the world. On TED.com, we're building a clearinghouse of free knowledge from the world's most inspired thinkers — and a community of curious souls to engage with ideas and each other, both online and at TED and TEDx events around the world, all year long.

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In fact, everything we do — from our Conferences to our TED Talks to the projects sparked by the TED Prize, from the global TEDx community to the TED-Ed lesson series — is driven by this goal: How can we best spread great ideas?

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TED is owned by a nonprofit, nonpartisan foundation. Our agenda is to make great ideas accessible and spark conversation.

Search millions of study sets or create your own. Improve your grades by studying with flashcards, games and more.

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