Using marshmallows to introduce the concept of volume is the perfect way to get students to buy in while learning the basics of this fifth grade standard.This three part lesson set has been designed to introduce the concepts of length, width, height, and volume in a hands-on way using marshmallows at the "cubes". The students will build rectangular prisms using marshmallows, diagraming their creations along the way. The first lesson is a directed task set in which the students will be guided th