Note: During the strategy discussion, you may like to introduce constraints that prevent students from saying things such as ‘black, white, white,
These constraints could be simple at first; for example, ‘You may use a total of 25 letters to explain the picture’. Students will quickly figure out that, on a 5 x 5 mat, that equates to one letter per tile. A common solution to this problem will be to say something like ‘b, w, w, b, w’.
Once students have overcome this particular constraint, you could raise the difficulty level of the task by saying that students must not use words or letters.
This would leave them with either symbols or numbers to work with. Once they have come up with a solution to this, it should be relatively simple to explain that they have essentially created a binary solution. Binary is commonly represented in 1s and 0s.
Briefly discuss the learning intention of the lesson with students.
For example: Today, we are learning to understand how computers store and send digital images and we are going to be able to represent images in a digital format.
Note: For this section, students could use devices or they could undertake the task as an unplugged activity.
See a completed example here: Pixel binary template - Completed example
Provide an opportunity for students to reflect on their learning. Use Tony Vincent’s QR reflection question generator to prompt discussion.
Note: QR code readers can be downloaded as apps. However, if you do not have access to a QR code reader, a direct link to the questioning site is below.
View a variation of this lesson developed by a Western Australian Teacher to suit his own context and the WAC.