## Do Now - Applying Tricky Tangents and Secant Lines.docx - Section 1: Do Now and Review of Proofs

*Do Now - Applying Tricky Tangents and Secant Lines.docx*

# Applying Tricky Tangent and Secant Lines

Lesson 7 of 10

## Objective: SWBAT apply properties of tangent and secant lines to circle questions.

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#### Write an Email Review

*10 min*

Write an Email:

To review what students have learned in this lesson, there is an opportunity for students to write an email to a classmate who is absent. In this email, students have a chance to explain how and when they know to apply certain rules to the three specific cases covered in today’s lesson. After a quiet time of writing, you can call on a volunteer to read their email or collect this writing activity.

One way to differentiate this activity is to ask students to write their own question based on a case (or maybe all three cases!) that is covered in the notes. Then, students can exchange questions and practice or answer their own questions.

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Computer Lab Review/Homework:

The following website provides free practice questions for a host of geometry topics. Use this link.

The specific link above goes to practice questions (in yellow) for all of the major concepts covered. You can review these topics ahead of time and then select the ones that you’d like students to work on. This is a great activity to do in the computer lab or use with a lap top cart in the classroom!

I also typically assign student to work on this as homework, and for students without internet at home, you can print the assignment easily from the website.

Exit Ticket:

Students will complete the exit ticket before leaving class which asks them to find the length of a segment using of the application cases studied in this lesson.

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- UNIT 1: Introduction to Geometry: Points, Lines, Planes, and Angles
- UNIT 2: Line-sanity!
- UNIT 3: Transformers and Transformations
- UNIT 4: Tremendous Triangles
- UNIT 5: Three Triangle Topics
- UNIT 6: Pretty Polygons
- UNIT 7: MidTerm Materials
- UNIT 8: Circles
- UNIT 9: 3-D Shapes and Volume
- UNIT 10: Sweet Similar Shapes
- UNIT 11: Trig Trickery
- UNIT 12: Finally Finals

- LESSON 1: Circles are Everywhere
- LESSON 2: 1080 Stomps and Angles in Circles
- LESSON 3: Circle Constructions are the Best!
- LESSON 4: Inscribing Angles
- LESSON 5: Inside Arcs and Angles
- LESSON 6: Tricky Tangent and Secant Lines
- LESSON 7: Applying Tricky Tangent and Secant Lines
- LESSON 8: Area of Sectors in Circles
- LESSON 9: Finding the Circle Formula
- LESSON 10: Circles Assessment