Thurs Dec 16th More Constructions

LEARNING OBJECTIVE: To practise drawing skills using straight edge, pencil and ruler make accurate Constructions

SUCCES CRITERIA: You will be able to accurately construct the following

Triangles

• Copy a triangle
  
• Isosceles triangle, given base and side
  
• Isosceles triangle, given base and altitude
  
• Equilateral triangle
  
• Triangle medians
  
• 30-60-90 triangle, given the hypotenuse
  
• Triangle, given 3 sides (sss)
  
• Triangle, given one side and adjacent angles (asa)
  
• Triangle, given two sides and included angle (sas)
  
• Incircle of a triangle
  
• Circumcircle of a triangle
  

Triangle Centers

• Triangle incentre
  
• Triangle circumcentre
  
• Triangle orthocentre
  
• Triangle centroid
  

Circles, Arcs and Ellipses

• Finding the centre of a circle
  
• Circle given 3 points
  
• Tangent at a point on the circle
  
• Tangents through an external point
  
• Focus points of a given ellipse
  

LESSON: Work through the constructions by demonstrating them and then given students a chance to have a go at them

PLENARY: Checking answers walking around room / supporting students who are struggling.

Exam Questions: Use these questions with 25 mins to go as a 'test' to be handed ion an marked.