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Students learn how a circle can be formed into a parallelogram and rectangle so the area is derived as A =πr2. ...

Students learn about finding the circumference of a circle as a multiple of π and as a decimal correct to 3 sign...

Students use the circumference and area of a circle to solve a variety of problems with circular shapes. Throug...

Students learn how to calculate the total surface area of cylinders using net drawings. As learning progresses ...

Students learn how to calculate the volume of a cylinder both in terms of pi and as a decimal to three significa...

This lesson consolidates calculating the circumference of a circle and the perimeter of circular shapes. Studen...

Students are taken through the process of discovering the relationship between the radius, diameter and circumfe...

The lesson is intended to consolidate applying the area of circle formula to solve complex problems. To extend ...

Students are guided though the derivation of the Area of a Circle formula by approximating a circle from its sec...

October 1, 2018

Solving problems with angles in parallel lines is like solving a murder mystery. One clue leads on to the next and the next until the murderer is found. However, it doesn’t end there. The detectives need to explain their reasoning in court using the relevant laws and procedures should the murderer plead not guilty. If […]September 10, 2018

An equation is when one expression, or term, is equal to another. To solve an equation means to find the value of the variable (represented by a letter) that makes the two expressions equal. There are two types of equations for secondary school mathematics, linear and none-linear. In this blog I write about how I […]August 4, 2018

When learning how to simplify surds students need to understand the difference between a rational and irrational number. Rational numbers include integers and terminating and repeating decimals. They can be written as a fraction with both the numerator and denominator as integers. An irrational number is a number which, in its decimal form does not […]