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Measurement and Unit Conversion: Unit Conversion Factors of Time: Hours, Minutes and Seconds
04:51

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
02:52

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...

Dividing Decimal Fractions: Dividing Decimals: Four Different Outcomes
10:02

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...

Triangles: Triangles: Practical Problems
04:30

Triangles: Triangles: Practical Problems

This clip consists of several practical problems which the student can solve by applying the Pythagorean Theorem and other facts about triangles that have been discussed in previous clips.

Rounding Numbers: Summary Example and an Exercise
03:50

Rounding Numbers: Summary Example and an Exercise

This clip walks us through two examples of rounding with decimal numbers, then invites the student to, "…try one yourself...(and) handle it like the problem we just finished." The clip then talks about the importance of, "…returning to the origina...

Rounding Numbers: Rounding to the Nearest Tenth
03:29

Rounding Numbers: Rounding to the Nearest Tenth

This clip explains the procedure used in rounding to the nearest tenth. "The place to look is the hundredths place," the clip explains. "If it's less than five, leave the tenths place unchanged and drop everything to the right. If it's five or more,...

Rounding Numbers: What Are Rounded Numbers?
04:57

Rounding Numbers: What Are Rounded Numbers?

This clip explains what rounded numbers are and how they are commonly used. The clip states that, "…when we talk of rounded numbers, we mean they're not exact."

Rounding Numbers: Why Use Rounded Numbers?
00:54

Rounding Numbers: Why Use Rounded Numbers?

This clip explains that rounding is done when getting an exact measure either isn't important or isn't worth the trouble.

Compound Denominate Numbers: Multiplying Compound Denominate Numbers
03:37

Compound Denominate Numbers: Multiplying Compound Denominate Numbers

This clip explains how to multiply compound denominate numbers. The clip points out that, "…in multiplication, we don't work in columns as we do in addition…and, to multiply, the units must be the same….(so) we convert both compound denominate nu...

Changing Fractions to Decimals: Changing Fractions to Decimals
06:54

Changing Fractions to Decimals: Changing Fractions to Decimals

This clip explains that changing fractions to decimals is quite different from changing decimals to fractions. It takes us through the process of dividing the numerator by the denominator and asks the question: "How accurate do we want the answer? D...