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0:15:11

3 2 Equivalent Fractions

0:18:23

3 1 Comparing Fractions

0:17:17

3 1 Intro to Fractions

0:19:49

Chips or Disc Method to introduce Long Division

0:18:57

Area Models for 4th-5th grade Multiplication

0:14:52

2 4 Division

0:16:29

2 3 Multiplication

0:13:55

2nd Grade Addition with Number Lines

0:17:15

2nd Grade Addition and Subtraction with Base-10 Blocks

0:17:30

Story Problem Forms for 1st Grade

0:12:40

1st Grade Adding Tools

0:09:26

Expanded Form and Egyptian Numerals Lesson

0:07:14

Decimal Place Value Tips and Tricks

0:14:34

Introduction to Number Bonds, Tape Diagrams, and Base-10 Blocks

0:08:55

Change of Base with Hexadecimal

0:14:11

Change of Base with Octal and Binary

0:10:08

Introduction to Change of Base Using Base-5

0:13:22

Whole Number Place Value

0:12:24

Place Value Problems with 'Missing' Place Value

0:11:59

Roman Numerals for Elementary Classrooms

0:11:20

Analyzing a strange trig function with calculus.

0:14:43

Graphing a rational f(x) with calculus

0:04:26

Exactly: Part 2 , place value with tenths and hundredths

0:04:16

Exactly: Part 1 on whole place values