Understanding Decimal Fractions: Summary: Understanding Decimal Fractions
This clip summarizes the "Understanding Decimal Fractions" lesson, including use of the decimal point "to signal the units place of a number and then continue with digits to the right of the decimal point, signifying tenths, hundreds and so on." The...
Introducing Fractions: Fractions Greater Than One
Using the number line as a frame of reference, this clip explains that fractions aren't just points between zero and one; they can also be points beyond the number one. "There are fractions all up and down the number line, not only at the beginning,...
Introducing Fractions: Defining Fraction, Numerator and Denominator
This clip introduces the subject of fractions and delineates the components of a fraction: the numerator and the denominator.
The Meaning of Percentage: Percentage Provides An Easy Way to Compare Fractions
This clip explains that using percent to express values provides an easy means by which to compare fractions. The clip notes that, since there's a common denominator of 100, all that's needed to compare fractions expressed as a percent is to compare...
The Meaning of Percentage: Comparing Percentages
This clip provides examples which illustrate the fact that, while percents "have no great mathematical importance, they're just very handy from a practical point of view."
The Meaning of Percentage: Decimals, Percents and Fractions
This clip explains that decimals can be changed to percents by moving the decimal point all the way to the far right and adding the percent sign. "Changing percent to decimals is just the reverse," the clip adds. "We drop the percent sign, put in a ...
Fluid Volume: Converting Between Metric and U.S. Customary Systems
This clip explores the conversion of units between the U.S. Customary System and the Metric System. The clip explains that the transition factor for converting from a metric unit to a U.S. unit is 1.06 quarts over 1 liter.
Signed Fractions: Why Negative Fractions Are Important
This clip explains that, "
it's just as important to introduce negative fractions as any other negative numbers." The clip then provides practical examples of how and when negative fractions are used, such as when money is owed or when the temperat...
Introducing Fractions: Fractions, the Number Line, and Measurement
This clip explains that, just as every whole number has its place on the number line, so does every fraction. The clip then talks about how to divide the number line into sections that correspond to fractions. The clip also talks about the use of fr...
Interpreting Graphs: Examples of Circle Graphs
This clip explores circle graphs in depth. It explains that each part of these graphs is called a sector. The clip explains that the sum of the values in the graph must equal 100%, then provides practical problems, including one in which the value o...