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...
Signed Numbers: Absolute Value
Using a number line as a frame of reference, this clip explains that "
the absolute value of a number is its distance from the origin" So, negative 3 and positive 3 both have the same absolute value of 3. "We think of absolute value as an ordinary ...
Signed Numbers: Comparing Signed Numbers
This clip explains that one number is smaller than the second if the first is to the left of the second on the number line. This is true with signed numbers as well.
Signed Numbers: Summary: Signed Numbers
This clip summarizes the use of both negative and positive numbers, as well as their location on the number line. "All these numbers," the clip states, "
are called 'signed numbers'." The clip also reviews how to determine which of two signed numbe...
Signed Numbers: Introducing Negative Numbers
This clip uses the number line to illustrate that there can be negative numbers as well as positive numbers. Negative numbers on the number line are located to the left of the zero, rather than to the right.
Signed Numbers: Positive Numbers
This clip explains that the symbol for positive numbers is the plus sign. If a number has no sign at all, it's understood to be positive. On the number line, the positive numbers are lined up in order to the right of the zero, in what is called "the...
Signed Numbers: Number Line Exercises
This clip offers practice in locating a set of numbers known as "the set of integers" on the number line. The clip explains that the integers include zero, but don't include any fractions, positive or negative.