Teaching and Learning Plans:
Plan 6: Planes and Points
Interactive T&L: Planes and Points
Plan7: Introduction to Angles
Interactive T&L: Introduction to Angles
• Plane, points, lines, line segments, rays, collinear points, length of a line segment
Khan
Recognizing rays, lines, and line segments
Drawing rays, lines, and line segments
• Terms: theorem, proof, axiom, implies, is equivalent to, if and only if
• Axiom 1: There is exactly one line through any two given points.
• Axiom 2: [Ruler Axiom]: The properties of the distance between points
• Angle as a rotation, angles in different orientations
Khan
• Terms: Perpendicular, parallel, vertical, horizontal
• Axiom 3: Protractor Axiom (The properties of the degree measure of an angle)
Projectmaths.ie Axiom 3
• That a straight angle has 1800(Supplementary Angles)
• Vertically opposite angles
• Theorem 1: Vertically opposite angles are equal in measure.
Vertical Angles definition - Math Open Reference
Khan
Equation practice with vertical angles
• Construction 8: Line segment of a given length on a given ray
Copying a line segment with compass and straightedge or ruler - Math Open Reference
Construction 8 Project Maths
• Construction 9: Angle of a given number of degrees with a given ray as one arm
Drawing Angles With a Protractor - YouTube
Constructing 75, 105, 120, 135, 150 degree angles and more - Math Open Reference
Construction 9 Project Maths
• Axiom 5:Given any line l and a point P, there is exactly one line through P that is parallel to l.
• Construction 5: Line parallel to a given line, through a given point
Construction 5 Project Maths
Khan
Equation practice with congruent angles
Other Links
IXL - Fifth year maths practice
Geometry Mathsisfun