An alternative technique may be found in reconsidering the nature and purpose of worked examples. Worked examples are presented to students to show them directly, step by step, the procedures required to solve different problem types. Worked examples contain explicit information that equates to schemas and automation.
That is, worked examples promote the acquisition of knowledge and skills required to:
.....identify problems as being of a particular type,
.....recall the steps (in sequence) needed to solve each particular type, and
.....perform each step without error.
Studying worked examples imposes a low level of cognitive load because attention need only be given to two problem states at a time and the transformation (rule operator) that links them.
A successful method for placing emphasis on worked examples is to present them with conventional problems in an alternating sequence (example type A, problem type A, example type B, problem type B and so on). Students are informed of the paired nature of the material and instructed to study each example closely because they will not be allowed to look back at it once they begin the associated problem.