Finishing AP Computer Science Principles is a major milestone, but the leap from block-based coding to real-world JavaScript can feel daunting. Fortunately, the landscape has evolved: Code.org has ...

The HTML Document Object Model (DOM) is a tree-like structure browsers create when loading a page, where every tag, attribute, and text becomes a node. JavaScript can traverse this tree to select, ...

An object is something that you can touch. A material is what the object is made from. When we choose a material, we need to select the right one for the object it will finally become. For example, ...

Git isn't hard to learn, and when you combine Git and GitHub, you've just made the learning process significantly easier. This two-hour Git and GitHub video tutorial shows you how to get started with ...

Activity 1 – Order the surfaces – How much friction do they produce? Activity 2 – Moving things quiz Activity 3 – Solve this problem Activity 4 – Conduct an investigation We need forces to make things ...