Section 3: Numbers
Section 3A: Scientific Notation
How to use, Multiplication, Division, Addition, Subtraction, Use of Calculator
Scientific notation is a useful way to represent very large and very small numbers. It is based on powers of ten, just like our number system (which is why the metric system is sooo much better). The word decimal itself is defined as "pertaining to tenths or the number 10" according to dictionary.com. Doing arithmetic with this system will be important in determining different measurements from the world around us.
Scientific notation is a useful way to represent very large and very small numbers. It is based on powers of ten, just like our number system (which is why the metric system is sooo much better). The word decimal itself is defined as "pertaining to tenths or the number 10" according to dictionary.com. Doing arithmetic with this system will be important in determining different measurements from the world around us.
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Section 3B: Significant Figures
Significant Figures, Rounding, Addition, Subtraction, Multiplication, Division, Use of Calculator
What is accuracy? How do we measure different things in nature? Accuracy is an important part of any science. A standard ruler has markings for each millimeter or tenth of a centimeter. If we measure the length of a sheet of paper, how accurate is our measurement?
What is accuracy? How do we measure different things in nature? Accuracy is an important part of any science. A standard ruler has markings for each millimeter or tenth of a centimeter. If we measure the length of a sheet of paper, how accurate is our measurement?
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Section 3C: Units
Units, Mass, Weight, Volume, Length, Prefixes, Density, Temperature, Mole, Dimensional Analysis, Unit Conversions
Everything that we measure has some sort of unit. There is a set of units that has been agreed upon as the world wide scientific language, SI units. This measurement system is also called the metric system. Each of the base units is based on an excepted measurement and contrary to the English system, when increasing or decreasing values it is done by a factor of 10 (which makes sense). |
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