Which of the Following Is an Instructional Example of Teaching

Multiple Choice

Which of the following is an instructional example of teaching through problem solving?

A) Providing students with a list of area formulas and asking them to find the area of a given rectangle.
B) Teaching students the algorithm for fraction division and then asking them to find out how many servings of 1/3 pizza could be made from 3-2/3 pizzas
C) Having students develop their own word problems that use a recently learned algorithm.
D) After students have conceptual understanding of the area of a rectangle,asking them to find the area of a triangle that was constructed by cutting a given rectangle in half and then to generalize their process to how they might find the area of any given triangle.