Average 3.78 based on 27 teacher ratings
David Stiefelmeyer is a retired Math/Law teacher at William Lyon Mackenzie Collegiate Institute located in North York, Ontario. When comparing David Stiefelmeyer's ratings to other teachers in the province of Ontario, David Stiefelmeyer's ratings are below the average of 4.17 stars. Additionally, the average teacher rating at William Lyon Mackenzie Collegiate Institute is 4.02 stars.
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UHHH can you say multiple personality disorder.. had her in grd 9 biz and she had biggest mood swings ever.. Scream at me in class and smile and ask me how i am in the halls.. very strange.. oh and don't bother askin her a question just like some other person said on here "it's harder than winning 6/49" and it's definitly a lot more painful and stressful. my worst mark in the history of my life. i am usually in the 90s and this was a good 30 % lower.. likee WT"?

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Tough teacher, but you really learn a lot from her class.

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Mrs. Stiefelmeyer is the kind of lady who would enjoy having low ratings. I think she loves the fact that so many kids resent her.

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she's the complete opposite of mr. stiefelmeyer, instead of being nice and having sudden outbursts of anger she's always on evil mode, and has sudden outbursts of niceness

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I had him for MATH12 in 1993. Great teacher, and I will never forget his demo about the foci of ellipses. Let the garbage cans fly!

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I had him in 1990. He would throw the garbage can at us too!! :)

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Excellent teacher. I got 96% in 1st year university calculus because I had already learned everything in his class!!

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U guyz should take at least one course with him. I still can't adapt to his sudden Outburst! though it's my last math 1 week left! But Smarty understandable

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I have a lot of respect for her, she knows what she is talking about. She scares me but I enjoy her classes, just don't ask her the wrong Questions.

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Great teacher! I'm SOOO glad I had him for calculus.

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Threw a garbage can at me...which was kinda scary, but helped me with my math...therefore, he's wicked!

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had him for calculus. i guess it's the fact that i understood calculus, which made his teaching easy for me to understand

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she gives mountains of notes (that you copy from an overhead) and then tests you on totally unrealted subjects. needs to be more clear.

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Does frequent homework quizzes, and conducts pop-quizzes. But, he also tries to be lenient and generous on tests.

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He's pretty good.
Never goes after you with homework - it's all up to the student if they want to learn or not.

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Actually takes the time to make his own notes and teach the class. Gives lots of homework, and does have a few emotional outbursts, but you get used to them ;)

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its ok if she hates me. she has a right to. but she has no right to pick *obvious* favourites.

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She doesn't treat me horribly, but she treats everyone else with low grades like the ground she walks on.

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I love him. So funny and nice. I wish him the best of luck when leaves teaching.

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She really is horrible. Can you say *&^6(?

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best teacher for me so far.

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very moody. nice sometimes and mean most times. asking her questions is harder than winning 6/49

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I like the sound effects he makes for everything, but he needs to cut down on the emotional outbursts...

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Scared me half to death the first time, but second time was cool.. learned a lot

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very fair, loads of homework expected!

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so funny. but stay on her good side, or else...

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Totally nice! Great teacher!!

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Learn more about William Lyon Mackenzie Collegiate Institute

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Based on 2,436 Ratings
William Lyon Mackenzie Collegiate Institute is located in North York, Ontario with an average teacher rating of 4.02 stars. When comparing William Lyon Mackenzie Collegiate Institute's teachers to other teachers in the province of Ontario, William Lyon Mackenzie Collegiate Institute's teachers are below the average of 4.17 stars. William Lyon Mackenzie Collegiate Institute ranks 35 amongst all High Schools in the province of Ontario. Learn More