Multiplying Whole Numbers, Part 2: Multiplication Facts For 3
This clip explains that multiplying by 3 "
is like walking along the number line with steps three units long."
Multiplying Whole Numbers, Part 2: Multiplication Facts Table and Multiplication Facts for 1 and 0, The
This clip introduces a table as a means by which to learn multiplication facts. It also reviews multiplication of whole numbers by 1 and 0.
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 5 and 2
This clip explains that when two factors change places in a multiplication problem, the product remains the same. It then explains the multiplication facts for 5 and 2, noting that exercises can be completed with the help of a number line. The clip ...
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: Memorizing the Multiplication Facts With Tables
This clip advises that, even with the full multiplication table filled in, the real work is just beginning, because it's necessary to commit the multiplication facts to memory. The clip then provides strategies for how to approach this task, suggest...
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: 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...
Dividing Whole Numbers, Part 1: Division Facts
This clip explains that it's not necessary to write out all the division facts, because "
we can get them by working backward from the multiplication table."