Discuss with others and choose one of the definitions that your class would like to use as a shared definition of trapezium.
Kanasu’s definition: A trapezium is a quadrilateral with exactly one pair of sides parallel.
Zo’s definition: A trapezium is a quadrilateral with at least one pair of sides parallel.
Sahir’s definition: A trapezium is another name for a quadrilateral.
None of these. I have my own definition.
My definition is: ______________________________________________________________________________________
Give reasons for choosing the definition.
_________________________________________________________________________________________________________
Do you think a concept/term can be defined in more ways than one?
Why?
Going by Kanasu’s definition, this is how parallelograms and trapeziums are represented.
According to this, which of the following is correct?
All trapeziums are parallelograms.
All parallelograms are trapeziums.
Some trapeziums are parallelograms.
No trapezium is a parallelogram.
Going by Zo’s definition, this is how parallelograms and trapeziums are represented.
Confirm Finish Lesson: Lesson 10- Discussing Definitions? You will NOT be allowed to attempt Question again.
What is a Trapezium
Task 1
Discuss with others and choose one of the definitions that your class would like to use as a shared definition of trapezium.
Kanasu’s definition: A trapezium is a quadrilateral with exactly one pair of sides parallel.
Zo’s definition: A trapezium is a quadrilateral with at least one pair of sides parallel.
Sahir’s definition: A trapezium is another name for a quadrilateral.
None of these. I have my own definition.
My definition is: ______________________________________________________________________________________
Task 2
Give reasons for choosing the definition.
_________________________________________________________________________________________________________
Task 3
-
a. YesDo you think a concept/term can be defined in more ways than one?
b. No
c. I am not sure
Why?
_________________________________________________________________________________________________________
Extension Task 1:
Going by Kanasu’s definition, this is how parallelograms and trapeziums are represented.
According to this, which of the following is correct?
All trapeziums are parallelograms.
All parallelograms are trapeziums.
Some trapeziums are parallelograms.
No trapezium is a parallelogram.
Extension Task 2:
Going by Zo’s definition, this is how parallelograms and trapeziums are represented.
According to this, which of the following is correct?
All trapeziums are parallelograms.
All parallelograms are trapeziums.
Some trapeziums are parallelograms.
No trapezium is a parallelogram.