Measurement and Unit Conversion: Unit Conversion Factors of Time: Hours, Minutes and Seconds
This clip presents unit conversion problems involving sleep that can be solved by utilizing unit equivalences for seconds to minutes and minutes to hours, and then either multiplying or dividing.
Measurement and Unit Conversion: Unit Conversion Factors of Time: Days and Hours
This clip introduces unit conversion factors of time involving days and hours. "It is not important to memorize these factors," the clip explains. "As long as you already know the equivalences, you can figure out the unit conversion factors." The cl...
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...
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.
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...
Dividing Decimal Fractions: Dividing Decimals: Four Different Outcomes
This clip presents four different outcomes that may occur when dividing decimals: The first possibility is that the division comes out even "just as it stands, with no remainder." The second possibility is that the division comes out even only after...
Understanding Decimal Fractions: Exponential Notation
This clip helps students better understand decimals and the power of 10 by using exponential notation to explain the relationship between the decimal point and the numbers that come before or after it.
Understanding Decimal Fractions: Converting Decimals to Fractions and Fractions to Decimals
This clip explains that, "
.changing a decimal to a fraction or a mixed number isn't much trouble," then proceeds to illustrate that statement with examples. The clip adds that the fraction may be (but doesn't have to be) reduced to the lowest term...
Understanding Decimal Fractions: Reading Decimal Fractions: Using Fractions
This clip explains how to read and say decimals using fractions. It includes an example in which two fractions with different denominators are added. Their sum is expressed with their common denominator in the fraction that results.