Finding the perimeter of the triangle Whiteboard exercise Play

Formulas Student activity Play

Geometric problems Student activity Play

Harry's lawn Whiteboard exercise Play

Honey combs Animation Play

How will the perimeter change? Student activity Play

How will the perimeter change? Whiteboard exercise Play

John's lawn Whiteboard exercise Play

Lena's birthday cake Whiteboard exercise Play

Let's investigate perimeters and areas Student activity Play

Miscellaneous problems Student activity Play

Mixed problems Student activity Play

Mutual position and number of common points of two circles Student activity Play

Mutual position and number of common points of two circles Whiteboard exercise Play

Parts of a circle's circumference Student activity Play

Perimeter of a polygon Whiteboard exercise Play

Perimeter of a rectangle Student activity Play

Perimeter of a rectangle Animation Play

Perimeter of a square Animation Play

Perimeter of a square Student activity Play

Perimeter of a triangle Animation Play

Perimeters of geometric figures Student activity Play

Properties of enlargements, part II Student activity Play

Proportions Animation Play

Proportions Student activity Play