Course Description:
The most basic of the math playlists. Start here if you have very little background in math fundamentals (or just want to make sure you do). After watching this playlist, you should be ready for the pre-algebra playlist.
Lectures:
Lecture 1 - Basic Addition
Introduction to Addition. Multiple Visual Ways to Represent Addition.
Lecture 2 - Addition 2
Adding 2-digit Numbers.
Lecture 3 - Level 2 Addition
Adding a 2 Digit Number to a 1 Digit Number. Introduction to Carrying.
Lecture 4 - Addition 3
Practice Carrying Digits to Add Multiple Digit Numbers.
Lecture 5 - Addition 4
More Practice Carrying with Multiple Digit Numbers.
Lecture 6 - Basic Subtraction
Introduction to Subtraction.
Lecture 7 - Subtraction 2
Different Ways to View Subtraction.
Lecture 8 - Subtraction 3: Introduction to Borrowing or Regrouping
Introduction to Borrowing and Regrouping.
Lecture 9 - Alternate Mental Subtraction Method
How I Subtract in My Head.
Lecture 10 - Why Borrowing Works
An Explanation of Why (not how) Borrowing/regrouping Works When Subtracting Numbers.
Lecture 11 - Level 4 Subtraction
Subtraction of Multi-digit Numbers Involving Borrowing.
Lecture 12 - Adding Decimals
Adding Decimals.
Lecture 13 - Subtracting Decimals
Subtracting Decimal Numbers.
Lecture 14 - Basic Multiplication
Introduction to Multiplication.
Lecture 15 - Multiplication 2: The Multiplication Tables
Introduction to the Multiplication Tables From 2-9.
Lecture 16 - Multiplication 3: 10,11,12 Times Tables
Multiplication 3: Learning to Multiply 10, 11, and 12.
Lecture 17 - Multiplication 4: 2-digit Times 1-digit Number
Multiplying a 2-digit Times a 1-digit Number.
Lecture 18 - Multiplication 5: 2-digit Times a 2-digit Number
Multiplying a 2-digit Number Times a 2-digit Number.
Lecture 19 - Multiplication 6: Multiple Digit Numbers
Working Our Way Up to Multiplying Multiple-digit Numbers With Each Other.
Lecture 20 - Multiplication 7: Old Video Giving More Examples
2 Examples of Multiplying a 3 Digit Number Times a 2 digit Number. 1 Example of Multiplying a 3 Digit Number Times a 3 Digit Number.
Lecture 21 - Mulitplication 8: Multiplying Decimals (Old video)
Multiplying decimals.
Lecture 22 - Lattice Multiplication
Introduction to Lattice Multiplication.
Lecture 23 - Why Lattice Multiplication Works
Understanding Why Lattice Multiplication Works.
Lecture 24 - Division 1
Introduction to Division.
Lecture 25 - Division 2
Dividing into Larger Numbers. Introduction to Long Division and Remainders.
Lecture 26 - Division 3: More Long Division and Remainder Examples
More Long Division and Remainder Examples.
Lecture 27 - Level 4 Division
Dividing a Two Digit Number into a Larger Number.
Lecture 28 - Converting Fractions to Decimals
How to Express a Fraction as a Decimal.
Lecture 29 - Percent and Decimals
Expressing Percentages as Decimals. Expressing Decimals as Percentages.
Lecture 30 - Dividing Decimals
Dividing Decimal Numbers.
Lecture 31 - Ordering Numeric Expressions
Ordering Numbers Expressed as Decimals, Fractions, and Percentages.
Lecture 32 - Greatest Common Divisor
4 example Problems of Determining the Greatest Common Factor of Two Numbers by Factoring the 2 Numbers First.
Lecture 33 - Least Common Multiple
Example of figuring out the least common multiple of two nunmbers.
Lecture 34 - Equivalent Fractions
Introduces the concept of equivalent fractions.
Lecture 35 - Mixed Numbers and Improper Fractions
Converting mixed numbers to improper fractions and improper fractions to mixed numbers.
Source: http://academicearth.org/courses/arithmetic
