Often times experienced mathematicians tend to get comfortable with certain problem-solving strategies. For example, in a problem one might use a system of equations to solve a problem rather than employing a simpler more easy way to solve it. Though using system of equations are great, knowing how to solve problems using different approaches is important, not just for oneself, but for their students...
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This paper provides the steps needed to solve a word problem involving a system of two linear equations. The solution uses the substitution...

Reading Formulas can make or break how a student comprehends their formula when alone - outside the presence of the teacher, instructor, tutor, or parent.
Formula for Area of Circle: A = π * r^2
Ineffective ways to read the area of a circle formula are as follows:
Area is π times the radius squared.
Area is π times the radius of the circle squared.
Area...
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Sample world problem with solution described by an inequality. This problem is from a discrete math class involving a school field trip.

Word Problem Mixtures as tested on the GRE, GMAT, ACT and SAT

How to find the new value after a percent increase.

Video shows how to find the total distance of cable needed to support a rectangular canopy with 4 poles at each corner.