Vocabulary: some “-ibles”
When you tutor English, you still need to discuss spelling – believe it or not. When I was a kid, I often wondered which words were “ible” and which were “able”. In time, I realized that I used more “able” words …
Month: December 2012
Essay Writing: Some practical considerations
Tutoring English, advice can be more important than “how-to”. Here, then, are some practical pointers to help your next essay. Talking to my sister yesterday, she told me she’s had a flood of essays to mark this semester. When your essay is amongst many …
Significant Figures: Adding and Subtracting
We continue our commentary on significant figures – aka significant digits – with how to add and subtract them. A chemistry or physics tutor deals with this topic periodically. If you look over my last few posts, you’ll see the accumulation of articles …
Significant Figures: Multiplying and Dividing
When you tutor physics or chemistry, most calculations require management of significant figures (aka significant digits). Today, we’ll look at multiplying and dividing. We know from earlier posts (see the previous one here) why significant figures are needed and how …
Significant Figures: Zeros
Tutoring physics or chemistry, significant figures are part of the landscape. Knowing when zero is significant can be tricky. In this, our second installment on significant figures (see the first one here), we start on the practical question, “What digits are significant?” …
Significant Figures: Genesis
When you tutor chemistry or physics, significant figures are a constant theme. Some people call them significant digits. We’ll start our explanation today. Bill: How heavy is that boat? Joe: Maybe 30 tons, give or take a couple. Bill: Then …
Recombinant DNA
Tutoring Biology 12, you sometimes talk about recombinant DNA. We’ll briefly look at what it is and why it’s used. Recombinant DNA (rDNA) contains DNA from more than one organism. The industrial uses I know of involve inserting specific genes from one species into …