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Author: Jack

Math: simplifying radicals, Part II

By Jack Posted on September 26, 2013 Posted in math

Tutoring math, you need to explain this every semester.  The math tutor draws the distinction between handling the numbers and the variables. Looking back to my earlier post on radicals, you’ll get the basic idea. Just for a quick review, …

Math: simplifying radicals, Part II Read more »

Math: measuring angles: degrees, minutes, and seconds

By Jack Posted on September 23, 2013 Posted in math

Tutoring math, you don’t see this very often these days.  The math tutor recalls learning it in Math 12. Let’s imagine you have 32.65 degrees.  In the “old days”, it might have been stated as 32 degrees, 39 minutes.  It …

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Math: practical calculator hints

By Jack Posted on September 19, 2013 Posted in math

Tutoring math, you notice the various calculators in use.  The math tutor reveals a couple of important differences among them. When I was in high school, I used a Texas Instruments scientific calculator.  What model it was I don’t know, …

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Math: the “fraction button”

By Jack Posted on September 15, 2013 Posted in math

Tutoring math, you’ll become aware of the fraction button.  As a math tutor, I don’t recommend using it.  Nonetheless, people commonly do…. Looking at a scientific calculator, you’ll likely see a button that looks like this: ab⁄c. It’s the fraction …

Math: the “fraction button” Read more »

English: two common sentence faults

By Jack Posted on September 12, 2013 Posted in english

Tutoring English, you deal with these issues constantly.  In this post, the English tutor sheds light on a couple of common sentence faults. You burnt the cake she is furious.      fused sentence You burnt the cake, she is …

English: two common sentence faults Read more »

Math: prime and relatively prime

By Jack Posted on September 8, 2013 Posted in math

Tutoring math, these definitions don’t come up often enough. The math tutor offers this brief read on them. A factor of a number divides into it with no remainder.  For example, 5 is a factor of 15; 7 is a …

Math: prime and relatively prime Read more »

English: Active vs Passive

By Jack Posted on September 5, 2013 Posted in english

With another school year upon us, we resume tutoring math, sciences, English, etc.  Tonight:  a post about English. Active voice and passive voice are both easy to understand.  Behold: Active:  Bob presented the speech. Passive:  The speech was presented by …

English: Active vs Passive Read more »

Math: hexadecimal numbers

By Jack Posted on September 2, 2013 Posted in math

Tutoring math, this is an interesting concept.  Its common application is in computer science. You might have seen numbers like c6 or e9.  Depending on the context, these may be hexadecimal (aka hex) numbers.  The hexadecimal system is base 16. …

Math: hexadecimal numbers Read more »

Math: Numbers in other bases

By Jack Posted on August 30, 2013 Posted in math

Tutoring math, you rarely hear of this now.  For computer science students, the math tutor gives a five-minute read on it. In everyday life, the number system we use is base ten. The number 4062 means 4×1000 + 0x100 + …

Math: Numbers in other bases Read more »

Area: size of a pizza

By Jack Posted on August 28, 2013 Posted in math

As a math tutor, you notice these little surprises about everyday things. We all know that, with a circle, Area=Πr2. Years ago, I worked in a pizza place. A small was 10″ (diameter), while a large was 14″. Let’s compare …

Area: size of a pizza Read more »

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