# Geometry: Revision and Ratio and Proportion

This course is very closely aligned to the CAPS syllabus and aims specifically at aiding Grade 12 learners in writing the NSC exams in November 2022. The course begins by revising and consolidating Grade 11 circle geometry. We will cover the chord theorems, angle segment theorems, cyclic quad theorems and tangent theorems. The course then moves on to discuss the proportionality intercept theorem and its converse. Similarity in triangles is the last concept to be discussed in the course. We will look at application-type questions and exam-type questions throughout the course.

• Lesson 1 60 min with Leigh on Tuesday, 22 Feb 2022, 17:00

## Revision of Circle Geometry: chord theorems angle segment theorems

Revising Grade 11 work on chord theorems and angle segment theorems.

• Lesson 2 60 min with Leigh on Thursday, 24 Feb 2022, 17:00

## Revision of Circle Geometry: Cyclic quadrilaterals and tangents

• Lesson 3 60 min with Leigh on Thursday, 24 Feb 2022, 18:00

## Advanced Revision of Circle Geometry

We take a look at circle theorem exam-type and application-type questions in this advanced lesson.

• Lesson 4 60 min with Leigh on Tuesday, 1 Mar 2022, 17:00

## The basics of proportions

Proportion statements and how they can be manipulated in different ways.

• Lesson 5 60 min with Leigh on Thursday, 3 Mar 2022, 17:00

## The Proportionality Intercept Theorem

The proportionality intercept theorem working in one triangle.

• Lesson 6 60 min with Leigh on Thursday, 3 Mar 2022, 18:00

The proportionality intercept theorem working in two triangles.

• Lesson 7 60 min with Leigh on Tuesday, 8 Mar 2022, 17:00

## The Converse of the Proportionality Intercept Theorem

The converse of the proportionality intercept theorem and its applications in questions.

• Lesson 8 60 min with Leigh on Thursday, 10 Mar 2022, 17:00

## The Basics of Similarity

Proving similarity when you know which triangles you are working in.

• Lesson 9 60 min with Leigh on Thursday, 10 Mar 2022, 18:00

In this advanced lesson we look at proving similarity when you’ve been given a proportion or need to replace a side.

• Lesson 10 60 min with Leigh on Tuesday, 15 Mar 2022, 17:00

## Ratio and Proportion Basic Exam Questions

In this lesson we look at basic exam type questions on ratio and proportion that fall into Level 1 and 2.

• Lesson 11 60 min with Leigh on Thursday, 17 Mar 2022, 17:00

## Similarity Basic Exam Questions

In this lesson we look at basic exam type questions on similarity that fall into Level 1 and 2.

• Lesson 12 60 min with Leigh on Thursday, 17 Mar 2022, 18:00

## Ratio, Proportion and Similarity Advanced Exam Questions

In this advanced lesson we look at exam type questions on ratio, proportion and similarity that fall into Level 3 and 4.

• Lesson 13 60 min with Leigh on Tuesday, 22 Mar 2022, 17:00

## Term 1 Revision: Basics

Revising the basics of what has been covered in Term 1.

• Lesson 14 60 min with Leigh on Thursday, 24 Mar 2022, 17:00

## Term 1 Revision: Stepping Up

Taking the revision of the previous lesson one step further.

• Lesson 15 60 min with Leigh on Thursday, 24 Mar 2022, 18:00