Education

Atom in a Box
Quantum physics tool that displays real-time visualizations of atomic orbitals.
http://daugerresearch.com/orbitals/

Black Cat Systems
Macintosh shareware and freeware, specializing in educational, scientific, health, ham radio, and entertainment software.
http://www.blackcatsystems.com/

Calculus WIZ
Become a calculus superpower with Calculus WIZ, an interactive tutorial that's simple, powerful, and easy to understand. (Requires Mathematica or Mathematica for Students)
http://www.wolfram.com/products/student/calcwiz/

C.D. Caterpillar
An educational program by Inspired Logic that "teaches kids how to read, not how to watch cartoons."
http://www.inspiredlogic.com/cd/

4D Academic
Teach database theory and practice using 4D.
http://www.4d.com/academic.html

Dogpark Software
Makers of a variety of amateur radio software utilities, ideal for the HAM radio enthusiast.
http://www.dogparksoftware.com/Macintosh_Amateur_Radio_Pr.html

Genetic Art
A Macintosh drawing program created to teach children about the concepts behind both evolution and genetics.
http://www.cim.mcgill.ca/~dudek/macsoftware.html

Grade Machine
Designed by Misty City, this grading program provides teachers a multi-functional grade spreadsheet. Features include e-mail merge to communicate with parents, and filters to create web pages.
http://www.mistycity.com/

K21 Micromedia Software Educational
Best source for educational discount software for K-12 through college.
http://k12mmp.com

Mathematica for Students
Use it as easily as a calculator, but tackle computations only Mathematica can handle. (Wolfram Research)
http://www.wolfram.com/products/student/mathforstudents/

Miss Lindquist the algebra tutor
An intelligent tutoring agent that is actually able to tutor students to write algebraic expressions for story problems. This system is based on cognitive sciencific research and is funded under a National Science Foundation grant.
http://www.cs.cmu.edu/~neil

Mygradebook.com
A Web-based teacher gradebook that saves time, reduces teacher-parent conferences, and improves student performance. Provided via a secure socket connection.
http://www.mygradebook.com/

Phillip Roy, Inc.
Programs equip students with the knowledge and skills to set goals for themselves and make better life choices. Their educational materials are written for students of different learning abilities.
http://www.phillip-roy.com/

Preferred Educational Software
A site that provides one stop shopping for sports and athletic software for coaches and athletic directors.
http://www.pes-sports.com/

Queue, Inc.
Software, video and CD-ROMs for history, science and literature.
http://www.queueinc.com/

Sleek Software
TAAS, FCAT, ISAT, and general state test-preparation tutorial and diagnostic software for first grade through high school. Math, Reading, Writing, Algebra, Biology, and Social Studies.
http://www.sleek.com/

TI-Graph Link
A Macintosh program, by Texas Instruments, that interacts with the TI-73, 83, 86, 89, and 92 models of their graphing calculators.
http://www.ti.com/calc/docs/link2macbeta.htm