Dishwashing Vocational Program
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Student: John Doe |
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Objective: John will complete a TA for dishwashing with 80% accuracy in 8 out of 10 opportunities with fading staff support using a backward chaining procedure. |
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Materials: Data sheet, dish soap, dishes, sponge, drying rack |
Suggested Prerequisites: Ready response, multi-step directions |
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Reinforcement: John may access a 5-minute break of choice after the successful completion of the program. No verbal praise or instruction should be given during the program |
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Prompt Hierarchy : Least to Most Physical Prompting on the target step 2 second delayed gesture, gesture, light physical, full physical prompts |
Task Analysis Chaining Procedure: Steps for completing the task will be formatted as a task analysis. Each step will be scored on level of prompt needed to complete the step. The steps will chain together to form the completed task. All the steps except the last step of the chain will be full physical prompting, with the last step being the target step. When the target step reaches the mastery criterion, the next step in the chain will be added to the target. Mastery of step: 80% independence or better over 3 consecutive sessions. A baseline of the total task will be conducted before teaching to determine performance level. A baseline in other settings will be conducted after skill mastery to determine generalization of the skill. |
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Data Collection: · Ind, G, LP, FP based on most intrusive prompt needed · Percent Independent scored |
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Lesson Details : John should be able to thoroughly clean a sink full of dishes without direction from staff. In the event that John has not initiated the next step in the chain, staff will provide a prompt to initiate the next step. |
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Teaching Procedures: |
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Staff will present the SD “It’s time to wash dishes” to begin the task. John will approach the sink to show he is ready to begin. Each step will be completed with full physical prompting until the final step or target step is reached. John will attempt the step using least to most prompting to complete it. Once John has reached mastery criterion for step 20, he will move to completing steps 19 and 20. Program Mastery : John will move up in steps until steps 1-20 can be completed with 80% independence or better across 3 consecutive sessions across 3 different environments (school cafeteria, vocational lab sink, home economic room sink) Generalization : Once John has mastered the skill in the vocational lab setting with 3 consecutive sessions showing 80% or better, a probe in two other settings will be run. If John completes the skill in these settings with 80% accuracy or better the skill can be considered generalized. |
Program Steps 1. Turn on sink 2. Wet the dirty dishes in the sink 3. Get the sponge 4. Wet the sponge with water 5. Turn off sink 6. Get dish detergent 7. Put detergent on sponge 8. Put detergent back 9. Scrub the dishes with the sponge 10. Get drying rack 11. Turn on sink 12. Rinse off sponge 13. Put sponge away 14. Rinse off dishes 15. Put dishes on drying rack 16. Turn off sink 17. Get paper towel 18. Dry hands 19. Dry counter 20. Throw paper towel away
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Task Description: 1. John will approach the sink to show that he is ready to begin the task 2. John will turn on the sink with warm water regardless of the type of sink knob 3. John will wet the dishes that are dirty in the sink using the faucet 4. John will retrieve the sponge from the sponge holder near the sink 5. John will run the sponge under the warm water for 1-5 seconds to wet the sponge 6. John will shut off the water from the sink 7. John will retrieve the dish detergent from the caddy next to the sink 8. John will pour a quarter sized amount of detergent onto the sponge 9. John will return the detergent to the caddy 10. John will use the sponge to scrub the dishes in the sink until they are free of debris 11. John will retrieve the drying rack from under the sink 12. John will turn on the sink with warm water 13. John will rinse of the sponge he is using until there is no more soap 14. John will return the sponge to the sponge holder 15. John will rinse off the dishes until there is no more soap visible 16. John will put the dishes into the drying rack in an organized fashion 17. John will turn off the sink 18. John will get a paper towel from the dispenser next to the sink 19. John will dry his hands with the paper towel 20. John will wipe down the counter surrounding the sink with the paper towel 21. John will throw away the paper towel in a trash receptacle Error Correction : If John does not initiate a step or makes an error, staff will use least-to-most prompting to complete the step correctly. If John resists physical prompting mark a minus ( – ) in the box on the task analysis and ABC the instance. |
Baseline Scores:
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Baseline Skill |
Baseline 1 |
Baseline 2 |
Baseline 3 |
Overall Percent |
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Total skill |
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Vocational Lab |
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School Cafeteria |
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Home Economic Room |
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Target |
Date Introduced |
# of Trials to Mastery |
Date of Mastery |
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Step 20 |
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Steps 19 & 20 |
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Steps 18-20 |
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Steps 17-20 |
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Steps 16-20 |
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Steps 15-20 |
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Steps 14-20 |
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Steps 13-20 |
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Steps 12-20 |
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Steps 11-20 |
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Steps 10-20 |
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Steps 9-20 |
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Steps 8-20 |
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Steps 7-20 |
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Steps 6-20 |
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Steps 5-20 |
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Steps 4-20 |
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Steps 3-20 |
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Steps 2-20 |
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Total Task Steps 1-20 |
