12 Total Lego Challenges School Themed Task card format: For most challenges, students won't need more than a handful of legos. There are easier challenges, and some challenges that will really push your students to think "outside the box". I use these as an early finisher activity or as a reward. They are a hit in any class. Tip: Store Task Cards in photo boxes and have a few tupperware bins full of Legos so multiple students may work at a time. Dollar Spot bags of "Legos" are great too. ****As