Counting in Binary

This lesson teaches how to count using the binary system, which uses only the digits zero and one. Students will learn to represent numbers in base two and understand the place values associated with binary digits. Activities include grouping counters to illustrate binary numbers.

• 05:40 “So what next are we asked to do? So we asked to represent this on a paper abacus. So on a paper abacus, let's draw abacus. A paper abacus. Let's draw a paper abacus. Um, we have eight, eight, we have fours, then we have...”
• 06:26 “So we write one in four. We don't have any four. We already have eight. We don't have four. So we leave this space open or put zero. Then in two, we don't have two. We have zero. Then we have one. We have one. So okay, l...”
• 04:06 “For example, let me use stick like maybe a stick. Let's count out nine. I want to do this together. You can do that on your own end. Three, four, five, six, seven, eight, nine. These are nine counters. Now we have to gro...”