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Presefy is a just-out-of-beta web service which allows you to store and control your presentations anywhere you are. All your presentations are available and can be controlled via an Internet connection.
You can broadcast and control your presentation using any web-capable mobile device. Presefy lets you use a smartphone or a tablet to stay in charge of the presentation, jump to any slide with ease, and more. Your audience can follow your presentation in their own browser, or a computer connected to a projector can serve to broadcast the presentation.
Store and share presentations securely in the Presefy cloud. Presentations are ready to be presented anytime, anywhere. The basic plan limits you to having two presentations stored at any one time.
At the moment Presefy supports PPT, PPTx, and PDF. Presefy is designed with HTML5 so it is compatible with all platforms without any setup. There is nothing to download or install.
Watch the video: Presefy - Go Mobile with your Presentations
The basic version of Presefy is free. A Pro plan that will allow the storage of up to 20 presentations and other additional features is under development.
Recently I posted here about a similar service, ElectricSlide, which is iOS app-based, whereas Presefy is browser-based and platform independent.
Note: I my trials of Presefy, I found that slides are presented in their entirety without support for builds and transitions. Also, there seemed to be an issue with images being cropped.
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GeoGebra is free and multi-platform dynamic mathematics software for all levels of education that joins geometry, algebra, tables, graphing, statistics and calculus in one easy-to-use package. GeoGebra was first mentioned on EDge21 in October 2009.
GeoGebra recently announced the new Spreadsheet view in GeoGebraWeb. You now have the Algebra, Graphics and Spreadsheet view available in your web browser, all based on HTML5 without the need for any plugins.
What is new in Geogebra:
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Create and deliver beautiful presentations, easily and quickly, right in your browser with rvl.io.
Easy editing of your presentations is the hallmark feature of rvl.io. The editor is easy to use, applying presentation styles to the slides as you edit them, so you'll know exactly what you're getting. Presentations are HTML documents so you can always tweak the markup yourself using the HTML editor.
Make sure things appear the way you want them with a wide range of themes and transitions to pick from. By default, your presentations are private, only you can see them. You can chose to publish your work which makes it openly available.
See a video demo of rvl.io
rvl.io resentations can be viewed in any modern browser, including mobile. Touch-optimised presentations are delivered to touch devices.
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This is the last feature post of 2012. Feature posts will resume on Monday, January 7, 2013. HAPPY HOLIDAYS!!!
Quiz Hub is a source for free, online, interactive k-12 quiz games.
The focus of Quiz Hub is to help students strengthen their core knowledge of English, geography, history, math, and science through fun online interactive learning quizzes. Quiz Hub doesn't track individual students or generate reports about them.
Quiz Hub includes some printable tests that teachers can use in the classroom to assess their students. These fill-in-the-blank tests are randomly-generated and include answer keys.
Quiz Hub offers a subscription-based service. All subscriptions include 24/7 access to all quiz games for all subject areas from kindergarten through high school levels. School-wide licenses include school and home access for all teachers and students. Before purchasing a subscription, you can try the free quiz games.
The standard annual rate for Quiz Hub is $30 (USD) per student. School-wide discount rate is $300 (USD) for a school with a total enrollment less than 300 students, $1 (USD) per student if more than 300 students.
Because Quiz Hub doesn't require Flash, it can be used on the iPad.
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A special series of posts this week featured four iPad apps that can help you use your iPad effectively with an interactive whiteboard. While preparing the planned posts, I found another app worthy of mention, ShowMe.
ShowMe is a free iPad app similar to Educreations which was presented Wednesday. ShowMe allows you to record voice-over whiteboard presentations and tutorials and share them online. It’s an intuitive app that anyone should find easy to use with a minimal learning curve.
Features of ShowMe:
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Watch a video about ShowMe
There is really very little difference between ShowMe and Educreations. The most notable differences are that ShowMe has more pen colors, but as far as I can see, does not support making your videos private.

Also, it appears that ShowMe outputs to the web in HTML5 and Educreations is in Flash.
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Mugeda is an animation platform that can be used to create, share, and publish animated content.

Mugeda is a cloud-based, HTML5 web application that works completely within your browser without any software to download or install.

The animation content created with Mugeda can be used in a wide variety of applications such as games, tutorials, models, and simulations. Because they are built using HTML5, they can be viewed on nearly any device including computers, smartphones, and tablets (including iOS devices).
Mugeda offers several video tutorials to help you get started. Watch the video: Mugeda: Getting Started
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