As a teacher, use Lingt's simple drag-and-drop editor to create speaking assignments for your students to complete on their computers. Review student submissions for grading or to offer individual feedback. Include YouTube videos to make fun, culture-rich exercises. Use your own images to engage visual and contextual learning.
Check out Sky & Telescope's weekly observing update, Sky at a Glance, published every Friday. Keep up to date on the latest celestial events, and view the sky maps and observing tips.
This interactive timeline lets you browse through every president of the United States of America and learn info about them.
The Cornell Lab of Ornithology is a world leader in the study, appreciation, and conservation of birds. This site lets you search for different species of birds and learn interesting facts about them, watch cool videos, and explore everything you wanted to know.
Pi Day is celebrated on March 14th (3/14) around the world. Pi is the symbol used in mathematics to represent a constant -- the ratio of the circumference of a circle to its diameter -- which is approximately 3.14159. Pi has been calculated to over one trillion digits beyond its decimal point. As an irrational and transcendental number, it will continue infinitely without repetition or pattern. While only a handful of digits are needed for typical calculations, Pi's infinite nature makes it a fun challenge to memorize, and to computationally calculate more and more digits.
This alarm clock app for iOS/Android wakes you up early when the weather is bad or when traffic conditions are slowing down your commute. Even if you walk or bike to work, it will calculate the best time to compensate for your unique delays.
What do you want to be when you grow up? If you blurted out "cheese scientist!" then you would enjoy the Cheese Science Toolkit. This site is a guidebook for those curd nerds who have a special place in their heart for cheese. Many posts focus on particular cheese science topics such as how different cheeses are made, the flavors, chemical makeups, pasteurization, and cheese experiments.