Grade 9     

A high percentage of you probably don't think that Maths has something for everyone.

But Maths helps you think logically and develops problem-solving skills that will help in your future studies and careers. So instead of being a negative number, be a great numerator with skoool.co.za.

1. Equation of the line
Learn how to find the equation of a line, interpret the equation, and draw any line given the equation. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

2. Factors 1 – Extracting common factors
Learn how to reverse the process of multiplying into brackets to extract common factors from an expression. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

3. Factorise quadratics of the form x2 + bx + c

Learn how to factorise Quadratics of the Form x2 + bx + c.

Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

4. Factors 1 – Grouping similar terms
Learn how to rearrange the terms in an expression in order to group terms that have a common factor. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

5. Factors 1 – Factorise groups of four terms
Learn how to factorise expressions with four terms that have different common factors, by grouping similar terms together. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

6. Factors 1 – Factorising simple quadratics
Learn how to factorise simple quadratics. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

7. Pythagoras’ Theorem – Identify when Pythagoras’ Theorem can be used
Learn how to identify when Pythagoras’ Theorem can be used to solve triangles. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

8. Pythagoras’ Theorem – When either the opposite or the adjacent sides are unknown

Learn how to solve right-angled triangles when the opposite or adjacent side is unknown.

Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

9. Pythagoras’ Theorem – When a side, a right angle and another angle are known
Learn how to solve right-angled triangles when one side, the right angle and another angle are given. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

10. Pythagoras' Theorem Guided Problem - When the hypotenuse is unknown
Follow a guided example on how to find the hypotenuse, given the other two sides in a right-angled triangle. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

11. Pythagoras’ Theorem – When the hypotenuse is unknown
Learn how to find the hypotenuse, given the other two sides in a right-angled triangle. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

12. Calculating the slope
Learn how to use the formula to find the slope of a line joining two points and investigate the slopes of parallel and perpendicular lines. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

13. Symmetry
Learn how to identify lines of symmetry in polygons. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

14. Simultaneous equations
Learn how to solve linear equations, in two unknowns, simultaneously. Click here to open the lesson Click here to view the Learning Outcomes and Assessment Standards

 

  Here are some of skoool's great Mathematics and Science lessons and simulations:

Ordering Decimals


Angle Types - simulation


Cartesian Plane


Metals


Understanding Magnets - simulation


Gravity - simulation


A Balanced Diet


The Circulatory System


Photosynthesis
 

 
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