SigFigs and Conversions
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Unit Conversion & Significant Figures: Crash Course Chemistry #2 by CrashCourse [11:24]
Think About It: Scientific notation, units, and significant figures are all used in this video!
Unit Conversion & Significant Figures: Crash Course Chemistry #2 by CrashCourse [11:24]
Think About It: Scientific notation, units, and significant figures are all used in this video!
Significant Figures (SigFigs)
To perform well on any quiz or test on significant figures, I must be able to:
I should also:
Remember:
Key Questions (answer these questions in your notebook and bring to class on Wednesday):
To perform well on any quiz or test on significant figures, I must be able to:
- Answer the Key Questions on the metric system in your notebook.
- Come to class prepared to complete a brief assessment on significant figures.
- Come to class prepared to complete a worksheet on significant figures with your study partner.
I should also:
- Watch the Instructional Videos on significant figures for additional instruction and take notes, and/or ....
- Read the Topic Review lesson on significant figures for additional instruction and take notes.
Remember:
- You are also encouraged to read the following sections of Chemistry by Timberlake: Section 1.5 - Measured Numbers and Significant Figures and Section 1.6 - Significant Figures in Calculations, and 1.8 - Writing Conversion Factors
Key Questions (answer these questions in your notebook and bring to class on Wednesday):
- What is the purpose of "significant figures" or "significant digits"?
- When do you "round" a number an how do you do it?
- What is/are the differences between and "exact" number and a "measured" number?
- How are sigfigs handled when multiplying or dividing measurements?
- How are sigfigs used when adding and subtracting measurements?
- What is a "conversion factor" and why are they needed in nursing?
SigFigs
Watch Me: Instructional Videos -
SigFis are SO important that you have lots of videos for practice!
Why are Significant Figures Important? by Tyler DeWitt [7:44] What's the point of significant figures?!? Really, significant figures (or significant digits) can be such a pain in the neck. What is the point? Significant figures tell us how to round, but they also make sure that the answer we get from a math problem is not more precise than the numbers that we started with. Accuracy and precision are both important with significant figures and digits.
Determine the Number of Sig. Figs. in a Measurement by kentchemistry.com [2:21]
Determining the number Significant Figures can be difficult at first. This video shows you a trick to identifying the sig figs and goes over a few examples. Sig Figs are important because it shows the precision of a measurement.
Significant Figures Made Easy! by Tyler DeWitt [7:10]
Don't be confused by Significant Figures! It will JUST MAKE SENSE with this video! An introduction to significant figures. Discusses how to round for multiplication and division using significant digits.
Significant Figures Made Easy! (1.2) by Tyler DeWitt [5:02]
Introduction to significant figures. Discusses basics of multiplication and division.
Significant Figures and Zero (1.3) by Tyler DeWitt [5:02]
When you're doing significant digits, how do you deal with zeros?
Significant Zero Practice Problems (1.4) by Tyler DeWitt [8:10]
Lots of practice problems to work on significant figures with zeros.
Multiplication and Division with Significant Zeros (1.5) by Tyler DeWitt [4:31]
Now that we know when zeros are significant or not, we'll do multiplication and division and rounding with numbers that have zeros.
Add and Subtract with Significant Figures (1.6) by Tyler DeWitt [4:43]
How to do addition and subtraction with significant figures, also known as significant digits.
Scientific Notation and Significant Figures (1.7) by Tyler DeWitt [4:43]
How to round with significant figures when you're doing scientific notation problems.
Scientific Notation and Significant Zeros (1.8) by Tyler DeWitt [5:54]
Advanced: how to use significant figures to deal with tricky zero problems.
Using Significant Figures Practice Problems (1.9) by Tyler DeWitt [5:40]
Measurement vs. counting and how to round: a bunch of practice problems to work on using significant figures with units.
Watch Me: Instructional Videos -
SigFis are SO important that you have lots of videos for practice!
Why are Significant Figures Important? by Tyler DeWitt [7:44] What's the point of significant figures?!? Really, significant figures (or significant digits) can be such a pain in the neck. What is the point? Significant figures tell us how to round, but they also make sure that the answer we get from a math problem is not more precise than the numbers that we started with. Accuracy and precision are both important with significant figures and digits.
Determine the Number of Sig. Figs. in a Measurement by kentchemistry.com [2:21]
Determining the number Significant Figures can be difficult at first. This video shows you a trick to identifying the sig figs and goes over a few examples. Sig Figs are important because it shows the precision of a measurement.
Significant Figures Made Easy! by Tyler DeWitt [7:10]
Don't be confused by Significant Figures! It will JUST MAKE SENSE with this video! An introduction to significant figures. Discusses how to round for multiplication and division using significant digits.
Significant Figures Made Easy! (1.2) by Tyler DeWitt [5:02]
Introduction to significant figures. Discusses basics of multiplication and division.
Significant Figures and Zero (1.3) by Tyler DeWitt [5:02]
When you're doing significant digits, how do you deal with zeros?
Significant Zero Practice Problems (1.4) by Tyler DeWitt [8:10]
Lots of practice problems to work on significant figures with zeros.
Multiplication and Division with Significant Zeros (1.5) by Tyler DeWitt [4:31]
Now that we know when zeros are significant or not, we'll do multiplication and division and rounding with numbers that have zeros.
Add and Subtract with Significant Figures (1.6) by Tyler DeWitt [4:43]
How to do addition and subtraction with significant figures, also known as significant digits.
Scientific Notation and Significant Figures (1.7) by Tyler DeWitt [4:43]
How to round with significant figures when you're doing scientific notation problems.
Scientific Notation and Significant Zeros (1.8) by Tyler DeWitt [5:54]
Advanced: how to use significant figures to deal with tricky zero problems.
Using Significant Figures Practice Problems (1.9) by Tyler DeWitt [5:40]
Measurement vs. counting and how to round: a bunch of practice problems to work on using significant figures with units.
SigFigs
Read Me - Topic Review
Significant Figures by CK-12
What are "significant figures" and why do you need them to report measurement? Reviews the rules of significant figures in calculations.
Counting Significant Figures online practice by sciencegeek
Significant Figures Practice online practice by sciencegeek
Significant Figures in Measurements and Calculations by Anne Marie Helmenstine, Ph.D.
Significant Figures Problem by Anne Marie Helmenstine, Ph.D.
Significant Figures and Scientific Notation Test Questions by Anne Marie Helmenstine, Ph.D.
Read Me - Topic Review
Significant Figures by CK-12
What are "significant figures" and why do you need them to report measurement? Reviews the rules of significant figures in calculations.
Counting Significant Figures online practice by sciencegeek
Significant Figures Practice online practice by sciencegeek
Significant Figures in Measurements and Calculations by Anne Marie Helmenstine, Ph.D.
Significant Figures Problem by Anne Marie Helmenstine, Ph.D.
Significant Figures and Scientific Notation Test Questions by Anne Marie Helmenstine, Ph.D.
Conversion Factors
Watch Me: Instructional Videos -
Converting Units with Conversion Factors by Tyler DeWitt [12:45]
How to convert units using conversion factors and canceling units. Some people call this dimensional analysis or the factor label method, but you will call it easy after you've watched this video!
Understanding Conversion Factors by Tyler DeWitt [10:13]
Even if you can write conversion factors and cancel units, that doesn't necessarily mean that you actually understand what you're doing. Here, we'll look at how conversion factors work and what the math means. You'll understand the unit conversions that you're working on, so you'll be able to look at the answer you get and decide whether it makes sense.
Converting Units using Multiple Conversion Factors by Tyler DeWitt [10:04]
How do you use more than one conversion factor? Here, we'll learn how to combine multiple conversion factors into a row so that you can convert units in more than one step using the factor label method or dimensional analysis.
Multiple Conversion Factors (Part 2) by Tyler DeWitt [12:04]
How do you do unit conversion with numbers that have a top and a bottom?
Watch Me: Instructional Videos -
Converting Units with Conversion Factors by Tyler DeWitt [12:45]
How to convert units using conversion factors and canceling units. Some people call this dimensional analysis or the factor label method, but you will call it easy after you've watched this video!
Understanding Conversion Factors by Tyler DeWitt [10:13]
Even if you can write conversion factors and cancel units, that doesn't necessarily mean that you actually understand what you're doing. Here, we'll look at how conversion factors work and what the math means. You'll understand the unit conversions that you're working on, so you'll be able to look at the answer you get and decide whether it makes sense.
Converting Units using Multiple Conversion Factors by Tyler DeWitt [10:04]
How do you use more than one conversion factor? Here, we'll learn how to combine multiple conversion factors into a row so that you can convert units in more than one step using the factor label method or dimensional analysis.
Multiple Conversion Factors (Part 2) by Tyler DeWitt [12:04]
How do you do unit conversion with numbers that have a top and a bottom?
Conversion Factors
Read Me - Topic Review
Cancelling / Converting Units (page 1 of 2) by Purplemath
Cancelling / Converting Units (page 2 of 2) by Purplemath
Math Skills Review Dimensional Analysis by chem.tamu
Introduction to Unit Conversion: the SI by BCIT [pdf document]
Read Me - Topic Review
Cancelling / Converting Units (page 1 of 2) by Purplemath
Cancelling / Converting Units (page 2 of 2) by Purplemath
Math Skills Review Dimensional Analysis by chem.tamu
Introduction to Unit Conversion: the SI by BCIT [pdf document]