RockSim is a computer program that allows you to design any size rocket then simulate its flight to see how high and fast it will fly! Even before you start buying components and building your design, you'll find out if it will be stable and safe to launch, as well as meet any weight, speed or height criteria you might want. Instead of wasting money on incorrect components and numerous test motors, imagine how much money you'll save by doing all your test flights on the computer!XtraMath is an online math fact fluency program that helps students master their basic addition, subtraction, multiplication, and division facts.

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