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MIDDLE SCHOOL

About Math

Algebra
   equations
   factoring expressions
   graphing equations

Arithmetic
   division
   exponents
   factorials
   factoring numbers
   fractions/percents
   logarithms

Definitions

Geometry
   2-dimensional
     conic sections/
       circles
     triangles/polygons
   3D and higher
     polyhedra

History/Biography
Logic

Measurement
   calendars/
     dates/time
   temperature
   terms/units

Number Sense
   factoring numbers
   negative numbers
   pi
   prime numbers
   square roots

Probability
Puzzles
Ratio/Proportion
Statistics
Word Problems

Browse Middle School Algebra
Stars indicate particularly interesting answers or good places to begin browsing.

Selected answers to common questions:
    Direct and indirect variation.
    Inequalities and negative numbers.
    Positive/negative integer rules.
    Solving simple linear equations.



Why Some Solutions to Absolute Value Equations are False [10/24/2004]
When solving equations involving absolute value, you sometimes get an answer that doesn't check in the original equation. What is it about absolute value that makes this happen?

Why Use Letters in Math? [12/01/1999]
Why do we need to use letters in math?

Why Use n for Any Number? [09/28/2002]
Why do people use n when any number can fit in or when they want to indicate position?

Why Use Variables? [06/01/1999]
What is the point of using variables when you could use numbers?

Why Use X and Y for Variables? [10/23/2002]
Why do we use x and y for variables in an equation?

Writing Equations for Word Problems [09/01/1998]
Can you help me convert the following word problems to equations and solve them? An oil painting is 16 years older than a watercolor ....

x - 8 = -5 [06/13/2001]
I know the answer but our teacher wants us to show all of our work and add something to both sides.

Young's Formula [08/21/1999]
Calculating a child's dose of medicine based on the adult dose.

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