Exterior angle of a triangle – observation and proof Student activity Play

Finding angles Whiteboard exercise Play

Finding sides Student activity Play

Finding sides Student activity Play

Finding sides Whiteboard exercise Play

Finding sides Student activity Play

Finding sides in the hexagon Whiteboard exercise Play

Finding sides in the triangle Whiteboard exercise Play

Finding the measures of all angles and sides Animation Play

Finding the opposite event Whiteboard exercise Play

Forces of action and reaction act in opposite directions Student activity Play

Forces of action and reaction act in opposite directions Whiteboard exercise Play

How to know what transformation was used Animation Play

Image of a figure (reflection in the x-axis) Animation Play

Image of a figure (reflection in the y-axis) Animation Play

Interactions between ions of the opposite charge Animation Play

Interesting information Animation Play

Is it translation or rotation or reflection? Student activity Play

Kinds of triangles – classification by angles and sides Simulation Play

Kinds of triangles – classification by sides Simulation Play

Kinds of triangles – classification by sides Student activity Play

Multiplying both sides of the equation Student activity Play

Multiplying both sides of the equation Whiteboard exercise Play

Opposite angles of a parallelogram Animation Play

Opposite numbers Whiteboard exercise Play