When you have to use an equation you can look at it if you need to, BUT NEVER look at it as you write it unless you are just committing it to memory. If you actually need to use it. LOOK, take it away, write it THEN check you got it right.
When you have to use an equation you can look at it if you need to, BUT NEVER look at it as you write it unless you are just committing it to memory. If you actually need to use it. LOOK, take it away, write it THEN check you got it right.
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