Pre-Algebra

Incarcat la data: 19 Aprilie 2011

Autor: Admin

By Salman Khan - Khan Academy
Course Description:
Videos on pre-algebra. Should be ready for the "Algebra" playlist if you understand everything here.
Lectures:
Lecture 1 - Adding/Subtracting Negative Numbers

Adding and subtracting negative numbers.

 
Lecture 2 - Multiplying/Dividing Negative Numbers

Multiplying and dividing negative numbers.

 
Lecture 3 - Adding and Subtracting Fractions

How to add and subtract fractions.

 
 
 
 
Lecture 7 - More Complicated Order of Operations

More Complicated Order of Operations Example.

 
 
 
Lecture 10 - Level 3 Exponents

Fractional Exponents.

 
Lecture 11 - Negative Exponent Intuition

Intuition on why a^-b = 1/(a^b) (and why a^0 =1).

 
Lecture 12 - Exponent Rules Part 1

Introduction to Exponent Rules.

 
Lecture 13 - Exponent Rules Part 2

2 More Exponent Rules with an Introduction to Composite Problems.

 
Lecture 14 - Simplifying Radicals

Using Exponent Rules to Simplify Radicals or Square Roots.

 
Lecture 15 - Introduction to Logarithms

An Introduction to Logarithms.

 
Lecture 16 - Unit Conversion

Metric Unit Conversion.

 
Lecture 17 - Speed Translation

Translating Speed Units.

 
Lecture 18 - Introduction to Logarithm Properties

Introduction to the First Two Logarithm Properties.

 
Lecture 19 - Scientific Notation

Introduction to Scientific Notation.

 
Lecture 20 - Scientific Notation Examples

More Scientific Notation Examples.

 
Lecture 21 - Introduction to Ratios (New HD Version)

What a Ratio Is. Simple Ratio Problems.

 
Lecture 22 - Unit Conversion Example: Drug Dosage

Unit Conversion Example: Drug Dosage.

 

Source: http://academicearth.org/courses/pre-algebra

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