Poll Everywhere: Students can text answers from their phones

students can text answers from their phones to questions posed on a PowerPoint and it gives feedback in the form of a chart.  This can be used with an intro to a unit asking questions to start discussions, or as a review to test retention of the lesson.  (It is free with classes under 40) 
Thanks to Linda Barrett from the Health/PE Department for the link!

Qwiki - interactive search engine

Explore 3,000,000 topics in a format perfect for the iPad: learn about what's near you, across the world - and everything in between. Labeled "a seed that will blossom into an Internet wonder" by the NY Times, Qwiki combines thousands of sources to present concise, interactive summaries of millions of people, places and things in an experience optimized for the iPad. Explore topics by searching or browse a worldwide map highlighting landmarks, monuments, cities, towns, and more.

Numberphile - Videos About Curious Number Facts

Numberphile is a neat YouTube channel about fun number facts. There are currently thirty-three videos in the Numberphile collection. The videos cover things like 998,001 and its Mysterious Recurring Decimals, Pi and Bouncing Balls, and 1 and Prime Numbers. Numberphile's videos could be a fun way for students to explore and learn some fun facts about numbers. A fun number fact could be the "hook" to get that student interested in an aspect of mathematics.

This post originally appeared on Free Technology for Teachers.

Search a Variety of Categories on Google

A great page to start your search that breaks down many of the types of searches on Google into separate search boxes; good way to demonstrate to students the many things one can search on Google
re-posted from  Kathy Schrock's Guide for Educators on Discovery Education