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Math

# Trigonometry: Introduction | Precalculus, Module 5

In this one-month precalculus-level unit, learners will start studying trigonometry.

Avrila at Math With Avrila

7 total reviews for this teacher

1 review for this class

Completed by 2 learners

There are no upcoming classes.

15-18

year old learners

10th-12th

US Grade Level

1-12

learners per class

### $38

per weekCharged weekly

$19 per class

Meets 2x per week

Over 4 weeks

50 minutes per class

### There are no open spots for this class.

You can request another time or scroll down to find more classes like this.

## Description

### Class Experience

The general key topics for this month will be introductory trigonometry. For details of what will be addressed within these areas, see the learning goals list. We will use the OpenStax Algebra and Trigonometry curriculum from Rice University as an outline and reference; while this is not a test prep class, I am mindful of the fact that learners may have passing credit-bearing exams like CLEP Precalculus as a goal, and the scope and rigor will be consistent. (The next month's unit will be...

Learners will use and interpret angle and radian measurement. Learners will understand and calculate with sine, cosine, tangent, secant, cosecant, and cotangent ratios, from both a right-triangle and a unit-circle perspective. Learners will diagram and efficiently calculate exact values for trigonometric ratios for angles which are multiples of 30 or 45 degrees (pi/6 or pi/4). Learners will use technology to estimate values for trigonometric ratios for other angles. Learners will graph trigonometric functions. Learners will be familiar with features of graphs of trigonometric functions, such as periodicity, maxima and minima, and asymptotes. Learners will apply domain restriction to invert trigonometric functions, visually, through special values, and using technology. Learners will use transformations of trigonometric functions to model functions with similar behavior, such as a sine wave to model hours of daylight. Learners will use inverse trigonometric functions to solve trigonometric equations, including ones arising from modeling situations.

Learners will have practice problems to work in Rover for each lesson. Other assignments, quizzes, and tests will be in TeacherMade. Occasionally, such as in advance to clear group time for interactive tasks or when lecture topics take longer than anticipated, learners will be assigned video tutorials to watch outside class time.

Scratch paper and pencils, or a whiteboard and markers. Learners who are preparing for college admissions are advised to keep a portfolio (digital or on paper) of major assignments and 2-3 different types of problems, fully worked, per routine practice assignment; the materials of the student's choice should be available for this from the beginning of class. Examples include a Google Drive or Dropbox folder, LibreOffice software (Writer and Math), a binder and hole-punched printer paper or a hole puncher, etc. Consider that if you are applying to multiple colleges, a digital portfolio is easier to duplicate, and can be printed out if a physical copy is wanted. For this class, learners can use GeoGebra exclusively as their graphing calculator, but students whose intent is to take a credit-bearing exam should begin practicing with a calculator approved for that exam as soon as possible.

In addition to the Outschool classroom, this class uses:

Learners will receive numerical grades for practice and for each major assignment in a written report at the end of the class, and a current draft of their grades so far upon request during the class.

1 hour 40 minutes per week in class, and an estimated 2 - 4 hours per week outside of class.

TeacherMade is a site designed for school use which allows learners to access and complete worksheets, tutorials, and practice problems. If they wish, such as for added privacy, learners can sign in using a nickname or pseudonym. GeoGebra is a free, open-source math calculator, graphing calculator, and dynamic geometry site. Learners do not need an account to use it. Explain Everything is a shared whiteboard, similar to Google Jamboard but more flexible. Learners do not need an account and can access the board to write on it through a link. Learners who do not specifically want to write on the board don’t need to access Explain Everything at all – I will share the screen in Zoom and they can watch.

OpenStax Precalculus OpenStax Algebra and Trigonometry

## Teacher

Avrila at Math With AvrilaHere to make math make sense!

🇺🇸

Lives in the
United States7 total reviews

20 completed classes

#### About Me

Hello mathematicians, puzzlers, and other curious people! I'm a homeschool graduate, math professor, textile/sewing enthusiast, literary hobbyist, and general curious individual, here to share all of the above with the next generation. Math...