Binary numbers

ICS "G.Verga - Scordia - class 5A with teacher Grazia Valenti

















This activity was made following the lesson plan:  "Count the dots" - CSunplugged

 Data in computers is stored and transmitted as a series of zeros and ones. How can we represent words and numbers using just these two symbols?




We first prepared a set of five cards to be used as demonstration cards.

 Then we discussed about the number of dots in the cards: each card had twice dots of the card to its right.

 Then we used these cards to make numbers by turning some of them face down and adding up the dots that are showing.

 When a binary number card is not showing, it is represented by a zero. When it is showing, it is represented by a one. This is the binary number system.








Then we started playing with binary numbers, writing numbers in binary code, even our birthdays.

See the photostory:

PHOTOSTORY:BINARY NUMBERS