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checklist
I can...
Checklist of chapter outcomes.
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After This Chapter, I Can...
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quiz
Mastery Check
Progressive MCQ covering the entire chapter.
1 / 5
Which of the following notations correctly represents a ray starting at point P and passing through point Q?
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Explain Your Reasoning
Short explanation on comparing angles.
- Is it always easy to compare two angles just by looking at them? Explain why looking at the length of the arms does not tell you the size of the angle.
Focus on: the definition of an angle's size and what 'amount of rotation' means.
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Clock Angle Challenge
Finding angles at different times.
The hands of a clock make different angles at different times. At 1 o'clock, the angle between the hands is .
What will be the angle at 6 o'clock? Show your calculation and classify the angle.
Provide the final degree measure and the angle type.
Explain how you arrived at your answer.
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Reflect on Protractor Use
Reflection on avoiding the most common error.
Protractors have two sets of numbers: an inner scale and an outer scale. This can sometimes cause confusion leading to reading an acute angle as an obtuse angle (e.g., reading instead of ).
Write down your personal rule to remember which scale to use when measuring.
State a clear rule for placing the baseline and finding the zero mark.
Reflect on how your rule avoids measuring the wrong side of the angle or confusing acute/obtuse angles.