Building a rectangle Whiteboard exercise Play

Calculating surface area Animation Play

Calculating the area of a triangle Whiteboard exercise Play

Calculating the length of a side of a square Whiteboard exercise Play

Calculating the perimeter of a rectangle Whiteboard exercise Play

Calculating the perimeter of a square Whiteboard exercise Play

Calculating the sides of a triangle Animation Play

Central and inscribed angles on the same arc Whiteboard exercise Play

Central and inscribed angles on the same arc Whiteboard exercise Play

Central and inscribed angles on the same arc Student activity Play

Central and inscribed angles on the same arc – relationship Animation Play

Central and inscribed angles on the same arc – relationship Student activity Play

Checking the triangle in the coordinate system Whiteboard exercise Play

Chord bisector goes through the centre Student activity Play

Circle inscribed into a parallelogram Simulation Play

Circle inscribed into a triangle Student activity Play

Circles and ovals Student activity Play

Circumscribed circles Whiteboard exercise Play

Circumscribed circles, inscribed polygons Student activity Play

Classification of triangles by sides Animation Play

Common polygons Student activity Play

Common polygons – a hexagon Whiteboard exercise Play

Communication in space Student activity Play

Comparing the pH values for different solutions of the same concentration Animation Play

Composing and solving linear equations Class activity Play