I’ve always found this topic a bit tricky. As a biology tutor, it’s time to give my own explanation. Alternation of generations refers to the idea that the life cycle of a moss, for instance, comprises two distinct phases: one…
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Month: April 2013
Math: when to use Permute, when to use Choose
With counting problems, the math tutor needs to explain the uses of permute and choose. Permute and choose are counting functions. Found on any scientific calculator, they look similar to nPr and nCr, respectively. You use permutation (nPr) to count the number…
Math: How to read logs
Logarithms – logs, for short – are a perennial for the math tutor. What is a log? You see the button on your calculator, but only in high school (if ever) do you likely find out what it means. First,…
Math: Inequalities and Number Lines
As a math tutor, you’ll likely need to sort out a few basics about inequalities. Generally, people prefer equations to inequalities. Perhaps it’s for the reason that people like one definite answer to a problem: for instance, “x=5”. An inequality…
Biology: Matters of the Heart
When you tutor Biology 12, you need to discuss the heart. As is commonly known, the heart is a muscular pump. Its beat pushes the blood through the vessels to every part of the body. The human heart has two…
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