Alan Frieze and Danny Sleator, professors from Carnegie Mellon's School of Computer Science, are the hosts of this website of puzzles. Every few weeks, they post a new puzzle and a few weeks later, they post the solution and related references. The fairly advanced puzzles generally involve constructing an algorithm or a proof, and some also involve writing a computer program to solve them....

What skills do people need to survive in the 21st century? It's a great question and one that is examined in painstaking detail by the authors of this 242-page report published by the National Academies Press. Released in 2012, the report responds to a charge from the National Research Council to define the set of key skills that are referenced by the labels "deeper learning, "21st century...

GoConqr (formerly known as Exam Time) is a learning and networking tool for students and educators. GoConqr allows users to make flashcards, mindmaps, quizzes, notes, and slides to review concepts. Users can then choose to keep these resources private for their own use (or for their class's use), or opt to share these resources to the larger GoConqr community. By sharing resources, other CoConqr...

techLEARNING.com is produced by Technology & Learning Magazine. The magazine is available online and includes contributions from K-12 teachers, administrators and other experts in technology education. Feature articles in the March 2004 issue include Data: Mining with a Mission and Network Monitoring: A 360-Degree Plan. Websites, technology trends, and innovative classrooms or schools are also...

As a result of the kind donations of Andrew Carnegie in 1905, and chartered in 1906 by an Act of Congress, the aim of the Carnegie Foundation for the Advancement of Teaching is "to do and perform all things necessary to encourage, uphold, and dignify the profession of the teacher and the cause of higher education." While it would seem that this is a rather indomitable set of tasks, the Carnegie...

Typing.com's free Typing Lessons are a helpful resource for those looking to learn how to type or those who are hoping to hone in on their typing skills. Users may select their skill level, such as Beginner, Intermediate, or Advanced, to open dozens of lessons on the proper use of a keyboard. For instance, the first three lessons under the Beginner category cover the letters J, F, and Space Bar....