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Try http://databases.about.com/od/specificproducts/a/normalization.htm

Andrew Martin, major researcher on high school academic performance, was asked this during a presentation. He said that Principals usually tell him they expect students to do (the equivalent of) 45 hour study week in Year 11, including about 22 hours of lessons. 50 hour study week in Year 12...

Cosine rule is good to remember. I guess your Physics teacher must be 70, JM. Before hand held calculators (1970s) drawing was the usual way to solve these - to 3 significant figures. It's pretty quick.

Good question. I heard education-researcher Andrew J Martin speak recently. He said he found five types of students: Success-seeking - aiming for Personal Bests and achieving them.:wave: Success-avoiding - underachieving so they don't stand out. Failure-avoiding - working to avoid failure, or...

You can refuse a teacher anything, if you don't mind a sanction or detention or whatever for uncooperative behaviour. You raise the teacher's blood pressure, waste some class time, be a hero or a jerk depending on the teacher's cred. If you whinge about it, you look stupid.