This resource is a binary number review worksheet. This worksheet was adapted right out of the CS Unplugged curriculum. The original worksheet used christmas trees instead of Menorahs. I work at a Jewish day school and was looking for some binary review worksheets for my third grade class who was studying computer science concepts. The only worksheets I found were Christmas related, so I came up with this one for Chanukah.
Instead of 1’s and 0’s the worksheet uses lit and unlit menorahs to represent the binary numbers. The code used is very simple, 1 = a, 2 = b, etc… The binary is only 5 bits and should be fairly easy for the students to add. I used five binary cards that I handed out to the students to assist them in adding the numbers together. If you do not have binary cards, I would write 16 8 4 2 1 on the board to remind the students how we add binary numbers.
Students should have some grasp of counting in binary in order to complete the worksheet. This worksheet will provide a check for understanding, enrichment exercise, or short homework / classwork. Third graders were able to finish this worksheet in about ten to fifteen minutes.
There is a key provided. This worksheet is absolutely free, and licensed creative commons attribution noncommercial share alike 4.0. . If you enjoy this resource, I have other binary lessons and resources available..