1. Dimensions and Units, and the SI system
Into to units and SI
the electron volt
atomic mass unit
Into to units and SI

This is a brief summary as to what dimensions and units are and why we use a standard set of units called SI units

the electron volt


atomic mass unit
2. Simplifying the maths scientific notation, prefixes, Significant figures, Orders of Magnitude
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resources
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In this video, as part of my skills series, I look at what scientific notation and engineering notation is, how they are different. I also use a few examples to demonstrate them


How are prefixes used in science? They are small additions to units that give a scope of the size of that unit. This video runs through the different prefixes and how to use them.


Order of Magnitude is a useful tool for estimation, but what are they? In this video I explain what they are and how you can use them.

resources
Some worksheets to try
w_prefixes.pdf  
File Size:  243 kb 
File Type: 
3. Graphing
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Determine the appropriate graph types based on what type of variable you are analysing: nominal vs ordinal, discrete vs continuous: and thus bar graphs vs line graphs vs histograms.
This video examines the different types of variables you encounter in data collection and then explains why certain graph types are used to represent that data. 

Linearizing data is about determining the relationship between variables, specifically, the independent and dependent variables. In this video I show you how to turn non linear graphs to linear graphs and thus determine the mathematical equation that describes the variable.

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3. Understanding Precision, Accuracy and Uncertainty
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Coming Soon
4. Understanding Errors
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5. Validity, Reliability and accuracy in First Hand Investigations (experiments)
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What does validity, reliability and accuracy mean in experiments? Watch and find out.

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6. Validity, Reliability and accuracy in second Hand Investigations (research)
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How do you ensure your sources are valid, reliable and accurate? What do those terms mean? What's a useful easy to remember the criteria? This videos covers those terms and then explains the CRAAP test to hep you evaluate your sources. Go to 8:05 if you just want the CRAAP test

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