Working together to improve teaching & learning Leagan Gaeilge
Professional Development ›› Tutorials for Geometry

Welcome to our brand new tutorials for Geometry. Each tutorial will take you through a construction/theorem from the Geometry Course of Study at Junior or Leaving Certificate.The tutorials will explore both conceptual and procedural knowledge  for teaching and learning . Each video concludes with a list of additional resources available on the website for use in the classroom.

Constructions in Geometry





Bisector of an Angle

How do we construct the bisector of an angle? How does the construction work? How ca...


Perpendicular Bisector of a Line Segment

How do we construct the perpendicular bisector of a line segment? How does the const...



Circumcentre and Circumcircle

How do we construct the circumcircle of a triangle? How does the construction work? ...

Incentre and Incircle

How do we construct the incircle of a triangle? How does the construction work? How ...

Angle of 60 degrees

How do we construct the an angle of 60 degrees without a protractor or set square? H...


Theorems in Geometry

Vertically-opposite angles

Teaching a theorem using discovery learning, algebra as sense making and generalisin...