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In this video, we will see how to discuss errors and possible improvements.

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We will talk about the source and the effects of the error, the significance of the error,

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and possible improvements. This section is marked under the evaluation criterion.

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The key here is to discuss errors in and possible improvements to the method

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and not mistakes you made while carrying out the experiment.

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An example of an error in the method would be using a measuring tape where the smallest

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scale division is 10 centimeters. An improvement would be to use a measuring tape with a more

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precise scale division, for example 1 centimeter. On the other hand, a mistake during the experiment

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would be you reading the measuring tape incorrectly when finding a height or distance.

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Let's see how the discussion of errors and improvements looks like in the example IA.

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There are different ways to do this. I prefer to use a table for clarity.

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First, I describe the source and the effects of the error, so I basically say what the error is

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and how it affects the data. Then I explain the significance of the error, low, medium,

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or high significance, justifying the level of significance. Finally, I discuss possible

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improvement. Let me also show you the third error that I discuss in the example IA.

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The number and types of errors that you will discuss depends on your investigation. However,

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I recommend that you try to talk about at least two possible errors and improvements.

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If you really think that there are no errors in your method, please be sure to fully justify this.

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This also means that your method strength section will be longer. This completes step 7,

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action 4. Now you know how to discuss errors in and possible improvements to your method.

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In the next video, we will talk about how to discuss possible extensions.