Can your students "air mail" their Valentine's Day Cards?Integrate STEM in your classroom Valentine's Day STEM! Design, build, and send a Valentine mailer! The Engineering Design Process:Students plan, design, and execute their own ideas. After they have completed their activity, there is time for reflection on what worked and what didn't. They follow the six step Engineering Design Process: Ask, Imagine, Plan, Create, Experiment, Improve.Amazing resource for STEM club, STEM teachers, elementary