Все публикации

0:05:04

Finding the total and the change (3rd-4th grade math)

0:04:04

Using mental math to solve money problems (3rd-4th grade math)

0:11:21

Significant digits - introduction and usage

0:05:57

Classifying quadrilaterals, part 2

0:06:56

Classifying quadrilaterals, part 1 (5th grade math)

0:08:08

What are polygons and regular polygons? (5th grade math)

0:07:15

Review of basic angle concepts for 5th grade math

0:06:06

Scientific notation for large numbers (8th grade math)

0:05:50

Laws of exponents, part 3: recap of exponent laws (8th grade math / algebra)

0:04:21

Power of a power - exponent law (8th grade/algebra)

0:05:33

More on negative exponents

0:09:04

Zero and negative exponents (8th grade/algebra lesson)

0:04:54

Using a number line to find elapsed time (3rd grade math)

0:04:11

Elapsed time: time intervals to the minute (3rd grade math)

0:05:36

Using till and after in telling time (3rd grade math)

0:06:43

Powers with negative bases (exponents are positive; 8th grade math)

0:06:04

Laws of exponents 1: product of powers

0:03:40

Zero and one in multiplication

0:04:21

Order of operations - multiplication, addition, subtraction (3rd grade math)

0:04:29

Multiplication as an array (3rd grade math)

0:04:27

Meaning of multiplication: Many times the same group (2nd/3rd grade math)

0:04:27

Volume word problems (7th grade math)

0:04:18

Volume of prisms and cylinders

0:01:42

Surface area word problem: Cover a box with wrapping paper