My students already had some knowledge of what an array is because we sit in an array on the carpet a few times each day. We had recently connected it to multiplication when they did an activity representing multiplication equations using bingo chips and grid paper. During that activity I noted that several students could not accurately write a repeated addition equation for their array, so that was the focus for the Minecraft array lesson.
I listed out the steps that students were to complete during the activity. As I listed each step the expert demonstrated them on an iPad using Minecraft PE, which was projected. Student pairs were to complete the following steps:
- type a multiplication equation on a sign
- build an array that represents the equation using any type of block
- add another sign with the repeated addition sign (some deleted the first sign and put both equations on the same sign)
- check to make sure the arrays and equations match
- take a screenshot that shows the text on the sign and the array
- complete steps 1 – 5 again using a different equation
- upload two screenshots to Google Classroom