Carson is making chocolatecovered bars. The surface area of the bars will
determine how much chocolate he needs. Each bar is a rectangular prism 6 cm by 2 cm by 1 cm. What is
the surface area of a bar?
Order the
steps of Carson’s solution.
a.  He sums the
areas of the faces.  b.  He calculates the area of each face of the
model.  c.  He makes a model of a bar using centimetre cubes. The model is
a rectangular prism.   
