Multiplying Whole Numbers, Part 1: Summary: Multiplying Whole Numbers, Part One
This clip summarizes multiplication of whole numbers, including the relationship between addition and multiplication, the use of arrays, and the results when multiplying numbers by one or zero.
Multiplying Whole Numbers, Part 1: Arrays
This clip explains that one way to look at multiplication is through a pattern of columns and rows known as an array.
Multiplying Whole Numbers, Part 1: Multiplication Problems
This clip presents a number of multiplication problems and challenges the viewer to use arrays in solving them.
Multiplying Whole Numbers, Part 1: Multiplication By Zero
This clip explains that the product of any number multiplied by zero is zero.
Multiplying Whole Numbers, Part 2: Multiplication Facts For 4 and 8
This clip suggests the use of arrays or the number line to learn the facts about multiplication by 4. It states that multiplication facts for 8 are essentially the same as those for 4 but doubled. The clip also reiterates the fact that multiplying a...
Multiplying Whole Numbers, Part 2: Multiplication Facts For 6, 9, and 7
This clip explains that, now that we can multiply by 3, multiplying by 6 is easy because, "
it's just a matter of taking steps twice as big." It goes on to say that "
the 9's facts are in a class by themselves," explaining that, with the exception...
Multiplying Whole Numbers, Part 2: Summary: Multiplying Whole Numbers, Part Two
This clip summarizes some of the key points about multiplication, touching on the concept of the number line, arrays, and the importance of looking at the units place of products. The clip also points out some of the interesting facts pertaining to ...
Multiplying Whole Numbers, Part 3: Splitting Arrays and Partial Products
This clip explains that the use of smaller arrays and the calculation of partial products provides the easiest way to multiply multi-digit numbers by multi-digit numbers not ending in zero.
Multiplying Whole Numbers, Part 3: Review of Previous Multiplication Material
This clip reviews some of the key points from previous multiplication lessons, including expanded notation, the one hundred multiplication facts, and arrays.
Multiplying Whole Numbers, Part 3: Summary: Multiplying Whole Numbers, Part Three
This clip summarizes the key points in Part 3 of Multiplying Whole Numbers, whose goal is to teach students to multiply any whole numbers, however large. The key points include expanded notation, the 100 multiplication facts, arrays, and partial pro...