This year students are creating blogs or portfolios to document their learning. They are given a challenge that connects our current topic of study to the world around them. They can choose any challenge they want and can do as many as they want. Each challenge they take, they blog a reflection and discuss their thoughts on it. It surprises me how many students choose to do additional challenges, not to improve their grade, but because they are "fun".
Here is a link to our six weeks challenges so far for this year.