ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

- 23
### 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)...

- 2
### 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.

- 0
### Truth-Preserving, Logical Validity, Soundness, and Inductive Strength

Knowing what it means to be truth-preserving, logically valid, having a sound argument, and how much inductive strength your argument contains can all be hard to pin down. That is, until now.

- 7
### Standard Deviation and Variance By Hand: Steps to Calculate

Simple step-by-step guide to calculate the standard deviation by hand and in Excel with explanation of variance. Example is provided along with a quiz question.

- 4
### Statistics and Probability: Cumulative Distribution Function

Definitions, resources, references, and examples that include three different software packages.

- 0
### Maths help: How to round a number to the nearest 10,100 or 1000. Simple rounding rule to use for any any number.

Rounding is a great tool to estimate an answer in maths. This hub gives you the rules to allow you to round to any number as long as you know your place value. Plus I have included a great rap to help

- 10
### 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!

- 4
### Pi & the Circumference of a Circle, Easy Project for Visual Reinforcement.

A easy activity for pi day or any day to talk about circumference of a circle. This is an easy project to relate the circumference of a circle and pi

- 4
### How To Convert From Cm To Inches (And Back)

Learn how to convert from cm to inches and backward from inches to cm. This conversion is quite simple and easy to comprehend. I will show you basic formulas for better understanding of relation between measurement...

- 1
### How to enlarge a shape by a negative or minus scale factor from a centre of enlargement.

Before you attempt enlarging shaping with negative scale factors make sure you can enlarge shape with positive scale factors. In order to enlarge a shape with a negative scale factor: a) First make sure that you have...

working