My first mathematics assignment was an essay on the role of calculators as teaching tools (not just a computing device) in middle years classrooms. From this, I have been able to adapt a few of the techniques I researched into lessons and activities for my year 8s.
Man vs. Machine is a lesson I adapted from an activity from Creative Mathematics Teaching with Calculators (Amazon). Essentially a flashcard quiz, students have to solve the problems as quickly as possible. Some problems require a calculator, some can probably done faster in their heads.
I created a fancy-pants activity sheet for this lesson*. I think activity sheets appear to work very well to scaffold students in this age group. There are still several students who take a long time to write stuff down and draw up charts – this is from either lack of ability and tools, or a need to make it look pretty and perfect. That said, there are some problems with activity sheets that I might mention in another post.
For the lesson summary click through.