We do this in lots of ways. One technique I think we have only just begun to use for visual explanations is the visual loop. Specifically, the animated gif. Animated gifs: so much potential.

Are you excited about using technology to learn, teach, and be more productive? When you apply technology to purpose you can ...

In the following example, we loop through a list of numbers, and use the variable digit to hold each number in turn: Strings in Python are considered “sequences” — they can be iterated over ...