Overview

This lesson continues the study of binary representation systems, this time with images. The class is introduced to the concept of splitting images into squares or "pixels," which can then be turned on or off individually to make an entire image. After doing a short set of challenges using the Pixelation Widget, students make connections between the system for representing images and the ASCII system for representing text that they learned about in the previous lesson.

Vocab

• Pixel - short for "picture element", the fundamental unit of a digital image, typically a tiny square or dot that contains a single point of color of a larger image.

Resources