Lesson Plan

Segment Lengths in Circles

Finding the length of a chord, secant segment, or tangent segment in a circle.
Tricia P.
Classroom teacher
Cherokee High School
Canton, GA
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My Grades 10
My Subjects Math

Students will be able to determine value of the segment of a given chord, secant, or tangent using theorems about circles.

Grades 10
All Notes
Teacher Notes
Student Notes

1 The Hook/Warm-Up

Activity: Other — Kahoot

Use Kahoot to review previous material taught (i.e. Angle relationships in circles).  Have students log in while you go around checking homework.  Go over homework and questions over homework.  Then play kahoot.

2 Direct Instruction

Activity: Presenting

Present the following powerpoint by clicking the link.  Use examples in the powerpoint for whole class participation and discussion.


3 Guided Practice

Activity: Other — Peer Teaching

After the Powerpoint, have several students go to the board and have the rest of the the class pick a problem for the student to teach the class on the board.

4 Independent Practice

Activity: Assessing

Have students who would like to work independently on their own do so or allow peer-tutoring if needed as the teacher observes and assists students as needed.

5 Wrap-Up

Activity: Drawing

Have students make up their own question on an index card and have the teacher work those out for her homework.  These cards should be passed back to the students the next day.