Group items tagged

"PDFs are one of the most popular document formats, mainly because you can view them easily on any device. Sometimes you need to modify them or convert them to other formats depending on your usage. SmallPDF is a free, online service that gives you the ability to compress, convert, split, merge, modify, (and more) PDF files."

"CS Unplugged is a collection of free learning activities that teach Computer Science through engaging games and puzzles that use cards, string, crayons and lots of running around. The activities introduce students to Computational Thinking through concepts such as binary numbers, algorithms and data compression, separated from the distractions and technical details of having to use computers. Importantly, no programming is required to engage with these ideas! CS Unplugged is suitable for people of all ages, from elementary school to seniors, and from many countries and backgrounds. Unplugged has been used around the world for over twenty years, in classrooms, science centers, homes, and even for holiday events in a park!"

"We have handpicked for you today a list of some very good iPad apps that you can use with your students to create time-lapse and slow motion videos. Time-lapse is a cinematographic technique that involves compressing several photos (or frames) into a high speed video. This technique is usually used to photograph slow-changing scenes or objects (e.g cloudscapes, plans growing, crowds…etc). Stop motion is "an animation technique which makes a physically manipulated object look like it's moving on its own". "

"Do you know the differences between JPEGs, GIFs, PNGs, and other image filetypes? Do you know when you should use one instead of the other? Or which is best for storing your photos? How about the difference between lossy and lossless compression? If the answer to any of these is "no," you might be using the wrong image filetype! Here are the basics you need to know. (If you don't want to know the specifics, and just want to know which filetype you should use, skip to Which Image Filetype Should You Use? at the bottom.)"