One of the fundamental computer science concepts is that everything we do on a computer is really just turning binary digits on and off. Even though this sounds simple, it can be a concept that is hard to wrap one's head around. This activity brings the binary concept to reality through the creation of binary bracelets or bookmarks.

This lesson sequence offers students and teachers a way to develop data science skills using low technology skills through a series of “unplugged” activities, where students engage in data science learning without using computational tools. This material was created by Sara Fergus, Christa VanOlst, & Jon Stapleton for CodeVA with support from Capital One.

After reviewing tips for following instructions, students will use plane figures to create a mystery image using their teacher's algorithm. Unfortunately, the teacher's directions are not very precise. Students will lend a hand by giving detailed feedback to debug and clarify the set of ordered instructions to successfully build a snowman.