Practical Problem: Comparing Car Rental Costs
Using an inequality statement to compare the daily costs of two competing car rental companies.
Translating Word Problems into Inequalities
Translating word problems into inequality statements.
Practical Problem: Load Limit for a Bridge
Using an inequality statement to solve a practical problem.
Number Line, The: Introduction to Inequalities
This clip explains how the number line can be used to better understand the idea of inequality, which is based on the fact that, if two numbers aren't equal, one must be greater than the other.
Introduction to Inequalities and Solution Sets
Inequality statements are defined, solution sets explained, the use of a number line demonstrated, and the less than and greater than symbols illustrated.
Signed Numbers: Comparing Absolute Values
This clip states that, "
if you look at the number line, you'll see that all negative numbers are less than all positive numbers." Nonetheless, the clip explains, "
even though negative 5 is less than positive 1, the absolute value of negative 5 i...
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
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: Exercises: Rounding to the Nearest Tenth and Hundredth
This clip provides examples of how to round to the nearest tenth or hundredth. The clip explains that the procedure is basically the same in either case, except that, when rounding to the nearest tenth, it's necessary to look to the hundredths place...
Number Line, The: Summary: The Number Line
This clip summarizes the number line and how it can be used to show which of two whole numbers is greater, according to where each appears on a straight line. The clip revisits related concepts, including unit distance, graphs, coordinates, inequali...