Following showing the film, Flubber, I took my students outside to make flubber. The materials needed are listed on the worksheet along with with recipe. Students are to figure out how much the teacher will have to go buy in order for the whole class to make flubber.
The students basically have to multiply each ingredient by however many students are in each class. This is nice because the students will have to covert mixed numbers into improper fractions to multiply.
On page #2 is the steps on how to make the flubber.