Students recalled Koenig bringing his guitar with him to class despite him trying to hide it and his music career.
He was described as a "laid-back" teacher who successfully made bonds with his students.
Share it with us or read through inspiring stories from some of our members.
View Success Stories Few of us have time to spend making conversation when there's obviously a lack of chemistry.
Why go to all that effort when you can review your matches online, and go on better first dates that lead to something meaningful?
The old-fashioned ways of dating - trying to catch the eye of someone in a cafe or scouting for potential partners in a bar - can be fun.
But how can you know if they're truly compatible with you?
Here at e Harmony we believe there's a better approach to online dating than being bombarded with profiles and pictures.
Our Dating Advice site is packed full of useful tips and articles about every aspect of dating and relationships. Or are you wondering when to contact an e Harmony match?