STEM September’s Daily Holiday Challenges are great ways to engage your students in fun ways to learn historical facts and engage your students in STEM thinking. Students will love learning about The Days of September. Did you know that September 12th is Video Games Day, or that Sept 17th is Constitution Day? Everyday is a holiday STEM Challenges have an activity or a suggestion that will engage your students in a fun way to learn each day. If you have the Everyday is a Holiday Cards, these are similar just with more of a STEM connection.