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How to write MYP Maths Criterion B Assessments - Tips and Examples

Updated: Aug 17

Overview

Criterion B is all about investigating patterns. A summary of the steps are:


• Do the maths (the steps may be given or the student needs to select their own method to achieve higher levels)

• Identify patterns (how one result ties to another)

• Write a general rule (should clearly define how any value could produce the final result)

• Check that the rule works (the result from their rule should be the same result from applying a predetermined process - normally the "do" part in step 1)

• Explain why the rule works (MYP2/3)

• Prove that the rule will always work with any value, within the boundaries of their rule (an option in MYP4/5)


Tips

Where possible, try to avoid investigating into rules that lead to standard rules or formulae (e.g. area of a triangle = base x height/2). It is possible that some students will have seen these rules before and therefore you will not be assessing their investigative skills.


Useful starting points:

Layout

A simple format to follow would be to have a two part assessment.

The first part will be structured, with more support at the beginning to help students spot patterns and steps given so the student only needs to apply the given investigative process. In this part ask students to predict and spot patterns. Students can develop this into a general rule (MYP2 and above) or suggest relationships which they then verify (MYP1).

The second part will require students to select their own investigative process allowing students who tackle this to aim for the higher levels (7 - 8 in MYP1 and 5 - 8 in MYP2 and above).


Examples

View this free task, complete with assessment rubric, sample student answer and marking guidelines.



For further guidance, and 10 thorough examples, you can purchase this handy e-book or the individual assessments.





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