Home / Interactive Lessons / Shape / Key Stage 3 / Year 8 Term 4

Finding the Area of a Circle

Shape: Interactive Lessons
Finding the Area of a Circle
Finding the Area of a Circle
Finding the Area of a Circle
Finding the Area of a Circle
Finding the Area of a Circle

              Finding the Area of a Circle

              Students learn how a circle can be formed into a parallelogram and rectangle so the area is derived as A =πr2.  As learning progresses students practice finding the area of a circle in terms of π and calculate the radius or diameter when the area is given.The start of the lesson recaps finding the area of a triangle and parallelogram.  In the plenary students are challenged to use to square and circle of equal area to find the perimeter of the square.
              Differentiated Learning Objectives
              • All students should be able to calculate the area of a circle to 3 significant figures.
              • Most students should be able to calculate the area of a circle as a multiple of π.
              • Some students should be able to solve problems involving the area of a circle.
              View online lesson
              Lesson Downloads
              Download PowerPoint Download Notebook Download Flipchart Download WorksheetDownload Interactive Excel File
              Scheme of Work Link
              Circles, Cylinders and Circular Shapes 
              IMMEDIATE DOWNLOAD
              Categories: , , , ,

              Related Mr Mathematics Products

              Shape
              Shape
              Interactive Lessons

              Introducing Pythagoras’ Theorem

              Students discover Pythagoras’ Theorem through construction of Pythagorean triples.  As learning progresses stude...
              GCSE / Year 9 Term 6
              Interactive Lessons
              Shape
              Shape
              Interactive Lessons

              Trigonometry Introduction

              Students discover the three trigonometric ratios Sin, Cos and Tan through constructions.  As learning progresses...
              GCSE / Year 11 Term 3
              Interactive Lessons
              Shape
              Shape
              Interactive Lessons

              Surface Area of a Cone

              Students learn how to calculate the curved surface area of a cone and total surface area of a cone by considerin...
              GCSE / Year 11 Term 2
              Interactive Lessons
              Shape
              Shape
              Interactive Lessons

              Trigonometry – Area of Triangles

              Students learn how to derive and apply the area formulae for non-right-angles.  As learning progresses they are ...
              GCSE / Year 10 Term 5
              Interactive Lessons

              Mr Mathematics Teaching Resources Term by Term

              Year 7 Term 1 Year 7 Term 2 Year 7 Term 3 Year 7 Term 4 Year 7 Term 5 Year 7 Term 6
              Year 8 Term 1 Year 8 Term 2 Year 8 Term 3 Year 8 Term 4 Year 8 Term 5 Year 8 Term 6
              Year 9 Term 1 Year 9 Term 2 Year 9 Term 3 Year 9 Term 4 Year 9 Term 5 Year 9 Term 6
              Year 10 Term 1 Year 10 Term 2 Year 10 Term 3 Year 10 Term 4 Year 10 Term 5 Year 10 Term 6
              Year 11 Term 1 Year 11 Term 2 Year 11 Term 3 Year 11 Term 4 Year 11 Term 5

              Mr Mathematics Blog

              Getting Ready for a New School Year

              August 22, 2019

              When getting ready for a new school year I have a list of priorities to work through. Knowing my team have all the information and resources they need to teach their students gives me confidence we will start the term in the best possible way.  Mathematics Teaching and Learning Folder All teachers receive a folder […]

              Mathematics OFSTED Inspection – The Deep Dive

              July 6, 2019

              Earlier this week, my school took part in a trial OFSTED inspection as part of getting ready for the new inspection framework in September 2019. This involved three Lead Inspectors visiting our school over the course of two days. The first day involved a ‘deep dive’ by each of the Lead Inspectors into Mathematics, English […]

              How to Solve Quadratics by Factorising

              June 30, 2019

              The method of how to solve quadratics by factorising is now part of the foundational knowledge students aiming for higher exam grades are expected to have.   Here is an example of such a question. Solve x2 + 7x – 18 = 0 In my experience of teaching and marking exam papers students often struggle with […]