Weds mar 21st – Geometry - Circle Theorems

LEARNING OBJECTIVE: To understand and apply circle theorems to geometry problems

SUCCESS CRITERIA: You will understand the first three circle theorems

1. The angle at the centre of a circle is twice the angle at the circumference subtended by the same arc
   
2. Every angle at the circumference of a semi circle that is subtended by the diameter of the semi circle is a right angle
   
3. Angles at the circumference in the same segment of a circle are equal.
   

ENGAGEMENT ACTIVITY: Sketch and name all the parts of a circle you know.

LESSON: Using this Lesson Work through screen 3, then screen 5, then screen 2 – using questions on each screen to consolidate understanding. Have a go at Ex 13C page 313 if time.

PLENARY: Checking answers throughout the lesson, feedback at end of lesson.