Aaq, my “background” for teaching math and science is that i took (and did well on) the regents in high school. I also enjoy reading science magazines in the bathroom. I can’t say I’ve reviewed much of trigonometry, but i sometimes find myself doing long division in my head when I’m distracted.
I made the lessons fun; we did experiments in things like vacuums, oil and water..,i tried to add hashkofa in my lessons too, which they appreciated. I pepper my talk with yiddish; that and my beard make me register to them as jewish. The principal also referred to me as rabbi when talking to them, but they were told to call me Mr Avirah when in class.