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### The Number 9 | The Secret Knowledge of The Ancients Number Nine Code 911

The number 9 is the last number in a base 10 system which is the last and limit of all that is. Nine is a number which has many interesting qualities that other numbers do not have and has been used to hold a hidden...

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### More Hands-On Math--Using the Pythagorean theorem

This Hub is about teaching Middle School Math through the use of a hands-on activity. The topic being taught here is the pythagorean theorem and the hands-on activities are the Superbowl (buying an HDTV and TV stand)...

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### Differential Equations, part 1: Elimination of Arbitrary Constants

Going to heaven? begins at par. 10. DEs finds functions. This hub works backwards. You are given a function, and you find a differential equation associated with it.

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### How to calculate the area of circle giving your answer in terms of Pi.

In this hub I will show you how to find the area of circle giving your answer in terms of Pi (π). First of all you need to remember the formula for calculating the area of a circle: A = πr² A stands for...

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### Finding the nth term of decreasing linear sequences (math help)

Finding the nth term of a decreasing linear sequence can by harder to do than increasing sequences, as you have to be confident with your negative numbers. A decreasing linear sequence is a sequence that goes down by...

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### Negations, Conjunctions, Disjunctions, and De Morgan's Laws

Through the use of negations, conjunctions and disjunctions in logic, we can build up to De Morgan's Laws, a very powerful tool in logic.

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### How to Solve for X Using a Casio Calculator

In this article, you will learn how you can make better use of your CASIO calculator, by making it solve equations for x, in 3 easy steps. Do check this out, and maximize the advantage of your calculators!

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### Math Project Ideas: Examples of Project-Based Learning

A detailed list of 160 math projects, for all grade levels, to use in your class or tailor to fit your grade level.

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### Abel's Proof: A Gentle Introduction to Mathematics

Mathematics Can Be Interesting... Really Mathematics is not something that we normally associate with sublime beauty. The way mathematics is taught, it is a subject that many if not most people would prefer to avoid. ...

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### Football, Absolute Value and A Life Size Number Line Too: A Middle School Math Hands-On Lesson

Needing a fun way to teach absolute value to your middle schooler? Take a look at this lesson plan using football and a life size number line!