Introducing Binary Numbers
From Bob Brown on March 28th, 2020
This 13-minute video tells why binary numbers are important in computing and why computers use binary numbers. Students make their own binary counting cards. Then the video explains how to find the decimal value of a binary number and how to find the binary value of a decimal number. A printable set of counting cards and a set of exercises are available.
- Handout and Exercises
- Printable cards (front)
- Printable cards (back; this file is optional, the backs of the cards can be left blank.)
- Online Cards This page can replace paper cards in settings where students have computers available.
(I believe paper cards are preferable as they also teach the importance of place location.
The online cards are permanently properly arranged.) This page works best with Firefox. If the cards "misbehave" in Chrome, reloading the page sometimes helps.