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Karen Remick
Karen Remick

614 Followers

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Dr. Karen's Math Hacks: Basic Arithmetic: The Easy Way to Add, Subtract, Multiply, Divide, and Take Averages
Dr. Karen's Math Hacks: Basic Arithmetic: The Easy Way to Add, Subtract, Multiply, Divide, and Take Averages

Tips and tricks to do basic arithmetic quickly and easily

2022

·
Karen Remick
Karen Remick

Stories

Aug 2

Why Should We Learn Math When Everyone Has Calculators?

I hear this question a lot. I teach remedial math for the army and have even heard an instructor say that the only reason we didn’t allow calculators in class was that the ASVAB/AFCT doesn’t allow calculators on the test, which he thought was ridiculous. Yeah, that guy got a…

Math

4 min read

Why Should We Learn Math When Everyone Has Calculators?
Why Should We Learn Math When Everyone Has Calculators?
Math

4 min read


Jul 6

Fractions: Changing a Subtraction Problem with Borrowing into a Basic Addition Problem

I encourage my students to share the tricks they’ve figured out with me. A couple years back, I had a student who told me that when they are subtracting and have to borrow, they subtract the number from the 10 and then add the result. …

Math

2 min read

Fractions: Changing a Subtraction Problem with Borrowing into a Basic Addition Problem
Fractions: Changing a Subtraction Problem with Borrowing into a Basic Addition Problem
Math

2 min read


Jul 4

Math: How We Teach It V.S. How We Do It

I came to teaching in an unusual route: I got my Ph.D. in Space Physics before becoming a teacher of remedial math for the army. This means I had several decades of using high-level math before trying to teach low-level math. When I started teaching, I realized that I didn’t…

Math

4 min read

Math: How We Teach It V.S. How We Do It
Math: How We Teach It V.S. How We Do It
Math

4 min read


Published in

ILLUMINATION

·Jun 1

How to Start Liking Yourself

Several years ago, I went through some rough times and spent some time depressed. I really didn’t like myself and thought about how much better off everyone I knew would be without me around. I recognized this as dangerous thinking and wanted to like myself but didn’t know how. Reading…

Depression

3 min read

How to Start Liking Yourself
How to Start Liking Yourself
Depression

3 min read


May 21

Simplifying Ratios

Ratios are handy for scaling things up or down. It’s best when we can see a clear relationship in the numbers, however, sometimes the numbers aren’t always the easiest to work with. In addition, students sometimes get confused about which two numbers you can simplify and which you can’t. I…

Math

3 min read

Simplifying Ratios
Simplifying Ratios
Math

3 min read


Apr 30

Multiplying 2 Mixed Numbers

Multiplying a fraction or a whole number times a mixed number is easy: You break the mixed number apart and multiply the fraction or whole number times each part. (I’ve talked about this in articles here and here) Multiplying 2 mixed numbers, however, has been problematical. Recently, I was working…

Math

2 min read

Multiplying 2 Mixed Numbers
Multiplying 2 Mixed Numbers
Math

2 min read


Apr 3

Are We Teaching Math Wrong?

I don’t have to repeat any statistics regarding America’s math scores; we all know they’re bad. I sometimes hang out on Quora and there are hundreds of questions essentially asking “Why do we need to learn math?”. They don’t see the point. I work teaching remedial math to army soldiers…

Mathematics

4 min read

Are We Teaching Math Wrong?
Are We Teaching Math Wrong?
Mathematics

4 min read


Feb 13

Subtracting with Multiple Units: Borrowing at the End

When working with multiple units, be they inches and feet, pounds and ounces, or fractions and whole numbers, we have an option when subtracting that we don’t when we’re just using regular numbers: we can break the problem apart and borrow at the end (no loan application needed). The easiest…

Arithmetic

2 min read

Subtracting with Multiple Units: Borrowing at the End
Subtracting with Multiple Units: Borrowing at the End
Arithmetic

2 min read


Feb 11

Multiplying Large Mixed Numbers by Fractions

The standard method of multiplying a mixed number by a fraction is to convert the mixed number to an improper fraction, multiply straight across and then convert it back to a mixed number. …

Math

3 min read

Multiplying Large Mixed Numbers by Fractions
Multiplying Large Mixed Numbers by Fractions
Math

3 min read


Feb 11

Reuse/Recycle Your Math

I’ve found a lot of my math hacks by being lazy. I don’t want to use any more effort than I have to to get an answer. One of the first things I started doing is to reuse or recycle the math I already did. One of the first things…

Math

4 min read

Reuse/Recycle Your Math
Reuse/Recycle Your Math
Math

4 min read

Karen Remick

Karen Remick

614 Followers

Book Author

Scientist (PhD Space Physics), Inventor, INTJ, and all around strange person.

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