I recently came across the #mathphotoaday Challenge on Twitter and thought it sounded like a fun learning opportunity.
My students won't be in school for the entire month of May, but it could still be a great scavenger hunt challenge. Students could create Google Drawings or Presentations and see how many of the prompts they could find images for.
The possibilities for a project like this are endless. I will definitely be trying this or a similar project next year!