Compare your answers.

Complete the following table.

The following table gives a set of sample answers. Your entries may be different. If you are unsure if your entries are correct, please discuss them with your teacher.

ConjectureCounterexampleExplanation
All fish live in the sea. Trout A trout is a fish, but trout live in freshwater.
A polygon with 3 right angles is a rectangle. The shape is a polygon with three right angles, but it is not a rectangle.
A number multiplied by 10 will never end in 6. 1.6 1.6 × 10 = 16
All fruit tastes sweet. Lemon A lemon is a fruit that tastes sour.
No prairie provinces have mountains. Alberta Alberta is a prairie province that has mountains in it.