 In one approach the adult can complete all the steps for the learner and give the learner the opportunity to attempt the last one and prompt as needed.For the other approach the adult can prompt the learner throughout the steps on the chain and give the learner an opportunity to complete the last one independently.However, if unable to do so the adult helps by also prompting the learner through the last step and reinforcement is given to the learner once the last step is completed.