Naming Whole Numbers: Face Value and Place Value
This clips explains that every digit makes sense in two different ways at the same time. It makes sense according to which digit it is, which is known as face value, and it makes sense according to where we decide to put it, which is known as place ...
Practical Problem: Gas and Oil Mixture
A a two-cycle engine runs on a mixture of oil and gas. A practical problem involves determining how many ounces of oil to add to a gallon of gas to get the right mixture. The problem is solving with proportion.
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 3: Multiplying a Larger Number by a Single-Digit Number
This clip presents a simple multiplication problem in which a three-digit number is multiplied by a one-digit number. The clip explains that multiplication is essentially a shortcut for what would otherwise be a very laborious addition problem, then...
Multiplying Whole Numbers, Part 3: Multiplying by Ten, Twenty, Thirty and Beyond
This clip explains the role that zeroes play in multiplying numbers by 10, 20, 30 and so on.
Practical Problem: Threshold Weight
Direct variation is used in a practical problem to find the threshold weight for men of different heights.
Measurement and Unit Conversion: Unit Conversion and Cancellation
This clip takes the student through the process of solving problems involving unit equivalences for time. As part of this process, it introduces a number of important terms and concepts, including unit conversion and unit cancellation.
Measurement and Unit Conversion: Units of Measurement and Denominate Numbers
This clip talks about the important role measurement plays in daily life. The clip also explains that denominate numbers, which consist of a number and a unit, are used whenever something is measured. Finally, the clip mentions the United States Cus...
Depreciating Business Assets
The advantages, from a business perspective, of spreading the value of an asset over several years. This lesson also distinguishes between tangible and intangible assets.
Compound Denominate Numbers: Working With Metric Compound Denominate Numbers
This clip explains how working with metric compound denominate numbers differs from compound denominate numbers in the U.S. Customary System. "In the Metric System, we don't usually see a value like 21 meters 72 centimeters," the clip states. "Inste...