# Q4, W4: April 19-23 Geometry Teacher Kristin Andreason Geometry Honors 8 April 8-12 Unit 8: Circles with and without Coordinates
Standard(s) Taught

MAFS.912.G-C.1.2:  Identify and describe relationships among inscribed angles, radii, and chords. (Include the relationship between central, inscribed, and circumscribed angles; inscribed angles on a diameter are right angles; the radius of a circle is perpendicular to the tangent where the radius intersects the circle.)

Learning Targets and Learning Criteria
• identify central angles, inscribed angles, circumscribed angles, diameters, radii, chords, tangents and
• use the sum of the measures of the central angels of a circle with no interior points in common is 360°.
• describe the relationship between a central angle, inscribed angle, or circumscribed angle and the arc it intercepts.
• recognize that an inscribed angle whose sides intersect the endpoints of the diameter of a circle is a right angle and that the radius of a circle is perpendicular to the tangent where the radius intersects the circle.
• use Pythagorean Theorem to prove lines tangent to a circle at its radius.
Classroom Activities

Monday/Tuesday

1. Students will log onto the Zoom session.
2. Students will make flashcards on Circle Vocabulary and Circle Theorems from Quizlet.
3. Students will do the Learn, Write, and Match activities on Quizlet for these two sets of terms.
4. Students will do IXL U.2–Central Angles and Arc Measure.
5. Students will do IXL U.8–Arcs and Chords.

Wednesday:

1. Students will log onto the Zoom session.
2. Students will take notes on Inscribed Angles in their ISN on p. 54.
3. Students will then finish IXL’s or do more practice on Quizlet.

Thursday/Friday:

1. Students will log onto the Zoom session.
2. Students will do flashcards from Quizlet on Tangents and Secants.
3. Students will do IXL U.9 Inscribed Angles.
4. If time, we will do Quizlet live game.
Assignments Due
• Flashcards on Circles vocabulary and theorems and Tangents and Secants.
• IXL’s U.2, U.8, U.9