## Reflection: Intervention and Extension Coterminal and Reference Angles - Section 2: Reference Angles

In teaching this lesson I had a few students who struggled to work with with fractional expressions for radian angle measures. I demonstrated how to make one or two calculations. I tried not to make working with fractions a big deal, but I expect my Grade 12 students to be able to work with fractions. If necessary I quickly review skills with a student, but a student that needs more help must get help outside of the classroom.

I hope that the students will be more proficient with fractions as the Common Core is more consistently implemented throughout the K-12 curriculum. At this point I still adjust my teaching to accommodate student needs.

Struggles with Fractions
Intervention and Extension: Struggles with Fractions

# Coterminal and Reference Angles

Unit 7: Trigonometry as a Real-Valued Functions
Lesson 4 of 13

## Big Idea: What happens when we have angles more than 2*pi or 360 degrees?

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Standards:
Subject(s):
Math, trigonometric ratios, coordinate plane, radian measure
40 minutes

### Katharine Sparks

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