Constructing Regular Polygons

Constructing Regular Polygons
3
Constructing Regular Polygons

What's Included

  • Smart Notebooks Presentation
  • Activ Inspire Flipchart
  • Lesson Plan
  • Microsoft PowerPoint Presentation

Constructing Regular Polygons

Students learn how to construct regular polygons using a pair of compasses and straight edge to investigate the relationship between interior and exterior angles.  A Microsoft Excel spreadsheet are included as additional resources to support this discovery.
Differentiated Learning Objectives
  • All students should be able to construct a regular polygon using a pair of compasses and a straight edge.
  • Most students should be able to discover the sum of the exterior angles around a polygon.
  • Some students should be able to discover the sum of interior and exterior angles around a polygon.
View online lesson
Lesson Downloads
Download PowerPoint Download Notebook Download Flipchart Download Spreadsheet
Scheme of Work Links
Angle Properties Foundation Angle Geometry Higher
IMMEDIATE DOWNLOAD

You may also like...

Tangents Circle Theorems

This lesson guides the class through the discovery of circle theorems involving tangents. The theorems include, ...

Congruence

Students learn how to recognise and prove congruency using various angle properties and geometrical facts.  As l...

Interior and Exterior Angles

Students use the properties of regular polygons to calculate interior and exterior angles. As learning progresse...

Circle Theorems

Students are taken through the discovery of various circle theorems. The theorems include, angle at the centre i...

Mr Mathematics Blog

Rounding to a significant figure

When I teach rounding to a significant figure, I ask the class to discuss in pairs or small groups a definition for the word significant.  It is a word that all the students have heard before but not all are able to define. After 2 or 3 minutes of conversation I ask the students to […]

Calculating Instantaneous Rates of Change

When calculating instantaneous rates of change students need to  visualise the properties of the gradient for a straight line graph.   I use the starter activity to see if they can match four graphs with their corresponding equations. The only clue is the direction and steepness of the red lines in relation to the blue line […]

Converting Between Fractions, Decimals and Percentages

Fractions, decimals and percentages are ways of showing a proportion of something.  Any fraction can be written as a decimal, and any decimal can be written as a percentage.  In this blog I discuss how to use the place value table and equivalent fractions to illustrate how fractions, decimals and percentages are connected. You can […]