### SAT Math Problem Common Error

This is a problem that students often get incorrect because they don’t realize what the problem requires.

Try it and check back next week for the solution and common errors.

.…

This is a problem that students often get incorrect because they don’t realize what the problem requires.

Try it and check back next week for the solution and common errors.

.…

Two real numbers x and y are such that

**x ^{3} – y^{3} = 28**

find xy

**Answer: -3**

**More reading and writing in high school? No time for that.**

Will Fitzhugh has been struggling for more than 30 years to persuade high schools …

**Specificity in math matters** !

**Functions and their Inverses **

A common mistake made by math teachers and students alike:

All relations have inverses but not all inverses are functions. *Please don’t say that the inverse does not exist because it *…

We overheard a teacher telling a student to use the inverse when the teacher really meant find the reciprocal.

These terms are NOT interchangeable.

Here is an example: take the function ** f(x) = x ^{2}**

The inverse is ** f ^{-1}**…

Sally is picking peppermints off a tree. They come in two colors, red and white. She picks fewer than 100 total peppermints but at least one of each color. The white flavor is stronger, so she prefers red to white. …

** SAT vs ACT — That is the Question **

This question is so often asked and there are varied opinions. Let’s break down the major differences and then discuss how to make this decision.

The SAT was redesigned in 2016 and …

If a and b are positive integers such that

find a + b

*Solution: *

(a+b^{2})(a-b^{2})=49*41

a+b^{2}= 49

a-b^{2}= 41

2a = 90

a = …

Why is it that as we accelerate more students in their mathematics education with each passing year the students seem to understand less and less math?

As a math educator/tutor …