This activity challenges students to strengthen their ideas about range. Many students who can correctly indicate the range of, say, y=x^{2} using formal mathematical notation may still cling to some mistaken ideas. For example, students commonly say that π is not in the range of y=x^{2} because they cannot think of a number that, when squared, gives π.
Marcellus the Giant
This activity will help your students understand the definition of a proportional relationship. They'll create a giant and then make sure all of his features are proportional. They'll see the…
