Programming
Take the an hour of code challenge
Uses Blockly, a simple/visual syntax
Take a free class in programming
Learn Python, Ruby, or a multitude of other programming languages
Learn to code while you build a character to battle your foes
Very engaging
Coding challenges
A great way to build a foundation in programming
Use class code vv4mm6 to sign up
Use algorithmic thinking to maneuver your Lightbot through progressively difficult challenges
Design a game, make an animation, or just have fun and share it with the world
A great introduction to programming using Blockly
Some others: BlueJ, Coding Ground, GameMaker, Greenfoot, Made with Code, MIT App Inventor
Robotics
Build and program a car to race on a virtual circuit using machine learning
Compete against competitors from around the world
Free to a point, then costs creep with extended server time
Explore the cutting edge of robotics
Some others: Arduino, Carnegie Mellon Robotics Academy, Lego Robotics, RobotC, VEX
STEM
Technology Courses Online
Career
explore occupations in science, technology, engineering, and math at U.S. Bureau of Labor Statistics
make a children's book, flyer, or website about a STEM career that interests you
Design and Modeling
register as a student and get Autodesk Inventor, Revit, or ANY Autodesk product for free
build a part/assembly to solve a problem or just have fun
share your part with the world on Thingiverse (see below)
make and share your own 3D designs
similar to Inventor but much simpler
convert your designs to LEGOs to build at home
program, simulate, and assemble your designs
build from a design squad activity or get inspired from an episode
watch as teams use the design process to make unique challenges
download, explore, and build 3D designs using a unique way what was originally Google SketchUp
check out the community designs and import one into SketchUp and modify to
upload and share you 3D modeled designs with the world
get inspired by the designs of others
Electrical
build and test your own electronic circuits
Medical
Learn about food safety and food borne pathogens, especially if you sometimes prepare your own meals
Explore diseases and experiment with the symptom checker