Should I ask him out via Email?

Im a studnet and we have acourse taht is altenrating every second week (lecture and exercise). The exersice session is held by older students. And last semster (almost a year ago) this cute guy was teaching my group. Eversince i thought about asking him out since i find him so cute and crushing on him. Sadly i never see him at my uni and when he is is never alone. The only idea i had is to wright him an email. But somehow think its a little weird. It shos taht i def know his name and made research. Also will he know who i am maybe he doesn't know my name (and i will NOT send a pic of me). I aslo dont know what to wright exactly. I just dont know if thats a good idea. What will he think?

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+1 y
Also dont know how much this is accepted since he is a teacher somewhat.
Updates
+1 y
isn't an email like creepy?
Should I ask him out via Email?
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