I’m really picky when it comes to calculators. I’ve had a number of them over the years but, by far, my favourite one was an HP-21 that I bought while going to university and studying mathematics. What was special about the HP-21 was that it used RPN (Reverse Polish Notation) logic to solve expressions.
Thanks, HP Museum
I still have this calculator tucked away for memory purposes. The battery has long since given up the ghost and I have no idea where the charger is anyway. But, lightweight and powerful, it lasted me for years of calculations and was the source for inspiration for many a computer science problem to be solved.
A separate calculator is really a thing of the past in today’s world. With an iPod or iPad or smart phone, you just get an app. I’ve played around with many but broke out in a big smile when I downloaded and tested HiCalc Pro. I stumbled upon it when it was offered for free instead of its regular price of $.99.
It’s not just a calculator – it’s 11 calculators for the iPad. And you can bet that I’m smiling because the scientific calculator features an RPN layout!
The calculators are all fully skinable. In this case, I’ve used a leather look. I was totally impressed with the Unit Converter. It converters virtually anything to anything else! Cooking? Electric Current? Permeability? Velocity? Weight? In fact, there are 113 categories. They’re all there, loaded and ready to go.
Graphing, solving equations, finances, and so much more. If it could somehow be loaded into a calculator, it’s in here. Even a tip calculator!
If you’re looking for a good calculator – actually, good calculators – you need to check this one out.
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StormDriver – Pre-register
tormDriver is a web app providing a single interactive overlay for the whole Web without the need to install anything. StormDriver allows you to instantly see who else is on the same website as you, where people came from and where they are going. StormDriver also analyzes the users’ browsing habits and content tastes and leverages this information to provide an innovative content recommendation system.
2shared – file upload and sharing
The easiest way to share files.
Uploading.to – Mirror your files in one click
Upload portal to many online repositories
VirusTotal – Free Online Virus, Malware and URL Scanner
Virustotal is a service that analyzes suspicious files and URLs and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware detected by antivirus engines.
EasyTestMaker is a free online test generator to help you create your tests. You can create multiple-choice, fill-in-the-blank, matching, short answer and true and false questions all on the same test. You can also insert instructions and divide your test into multiple sections.
CurationSoft Content Curation Software
Discover, review, and curate content from Google Blog Search, YouTube, Twitter, Google News, Flickr and any RSS Feed you want.
App Store – Wooords
Wooords, with its quirky presentation, easy-to-understand mechanics, and fast-paced play, is going to consume the lives of word puzzle lovers the world over.
Teaching Ideas has thousands of free lesson ideas, activities and display resources that teachers can use in their classrooms. The site has been supporting educators since 1998 and teachers regularly submit their own resources to share with others via the site.
The future of education will be open and distributed | Connected Principals
The future of education will be open and distributed
Zeega is an open-source HTML5 platform for creating interactive documentaries and inventing new forms of storytelling.
Zeega will make it easy to collaboratively produce, curate and publish participatory multimedia projects online, on mobile devices and in physical spaces.
Apple – Education – Resources – Teachers and Administrators
Apple in Education resource page
FoxyProxy is a set of proxy management tools for Firefox, Internet Explorer (New!) and Chrome (New!). We also offer reliable, high-bandwidth proxy servers in 35 different countries. With these servers, you can:
Google Music – Set your music free.
Purchases from Android Market automatically appear in your library.
ColorFunc – www.colorfunc.com
ColorFunc is the next generation of online color tools for designers, artists and color enthusiasts. Its innovative design extends your ability to utilize a multitude of color tools, all in one easy to use color environment.
We are YAMweb®, a private, secure real time electronic communication service over the Internet, for communications among parents, students, educators and schools that is accessed by mobile communications devices. We provide an international, Internet website portal featuring links to student writers’ literary works and innovative, inquiry-based education projects for skill development in language arts, math, and science.
TEDxToronto – Nicholas Schiefer — Redefining the Word – YouTube
Grade 12 Student Nicholas Schiefer delivers a Talk at TEDxToronto 2011 on the theme of Redefining the Word.
Posted from Diigo. The rest of my favorite links are here.