Is it a trapezoid or a parallelogram?

Created Feb. 7, 2024 by Peter Fiddner

Multiple examples of parallelograms and non-examples of parallelograms are given. Students are to determine the attributes of a parallelogram. Then students go back to the non-examples and give a reason they are not parallelograms, this helps clarify/enhance the properties of the parallelogram. The same thing is then done with a trapezoid.