Problem Solving Series: Shopping
Challenge yourself to a problem solving task!
Watch the full video of how we work through the Triangular Numbers problem. Watch at your own pace and pause when you need to. Did you use the same strategies or do something different?
When attempting this task, many students make this common mistake.
Another strategy is drawing out each triangular number until you get to number 10 and number 20.
Try this strategy to challenge yourself.