Admire your dedication and caring attitude for our youth of today. Being an old school Tradesman/business owner IMO, the young kids of today and the last 20 years that I dealt with were pretty much useless with a very poor work ethnic and a bad attitude to go with. The one suggestion I have that kids today will accept and will be receptive to IMO, Use YouTube as a reference for learning like us old timers used written manuals with pictures for help. With the little time you get with them, some basics, safety and hopefully spark the interest of some is your reality. I have and use YouTube myself and it is a great tool, experience can't be taught, it have to be earned, we all start at 0, Good Luck with your teaching career, one of my daughters and her husband are in education, other daughter is an RN, 2 of my sons are business owners ( not related to what I did) and the youngest son has a teaching degree, but works in sales. Very proud of all of my kids ( now 42-51 already) and surely they had some educator's, mentor's along the way as I did that made a difference. Sadly the education system gets the blame for today's youth, But IMO Poor parenting is the real problem in today's society, off my soapbox now, Again, Good Luck ! And everyone have a Great day ! Summer is here !