"An added benefit to using WordPress and MathType is that if you already have equations in Word or PowerPoint, it's a simple matter to get them into the blog without retyping them or taking a screen shot. It works the other way too -- you can drag an equation directly from WordPress into MathType and use it anywhere."
from Bob Mathews "If a school has a site license for MathType, the license allows all students and teachers to load it on home computers and laptops. MathType will produce the LaTeX for you, so there's no need for screen shots, or going through lots of gyrations by trying to get the kids to learn LaTeX."
Stripped-down, minimalist but readable programming with an emphasis on visuals; this was originally designed for visual artists to program their own art-generating tools. Coding is done in text, no drag-and-drop GUI to help you, but results are immediate and highly visual. Lots of examples are shared online with source code at OpenProcessing (http://www.openprocessing.org/)
Designed for educational use, Alice gives kids an easy-to-use 3D world environment and introduces them to object-oriented programming. I worked with a secondary IT / programming course that used these tools, and it works great.