Our calculus teacher was tutoring a student on a Friday. He forgot to mention a crucial part of the solution. He emailed the student the critical part to the solution. On Monday, he asked the student, "Did you get me email?" The student replied,
"No, I never check my school email!"
Solution: Create a trigger and action using IFTTT. IFTTT is so simple, a teacher almost can't afford to not offer it to their students.
Great thing about this was that I created the trigger and action on my iPhone in front of the teacher. He sent me an email and the text showed up on my iPhone. Demonstrating how it worked so quickly was a selling point!