An oldie but a goodie
Recently we've been having a look at multiplication in Year 4 so we got onto the "Area and Perimetre Robot" activity. It's an old faithful but didn't the kids love it!
The idea is to use rectangular shapes to make up a robot. Then the kids have to do a series of calculations to work out the area of each shape before they can calculate the total area of the robot.
Step two is to work out the perimeter.
One of the first questions from a keen student was, "Can I use triangles in my robot?"
"Well," I replied, "Do you know how to work out the area of a triangle?"
"Sure - base times height divided by 2!"
"Okay, then you can use triangles."
It sure is going to be an interesting adventure when we get to work out the perimeter of that robot. Look out Pythagoras - here we come!
Here's a few examples from the Year 4 kids in Capitano Amazing's class - they look great! Sadly, the calculations were not really dark enough to be picked up in the photo.