| Teaching Objective | To teach the child to hold the bat correctly. |
| Materials | T-ball bat, tee, square box marking, reinforcers (preferred items or social reinforcement) |
| Teaching Environment | The child stands in the square box next to the location where the T-ball tee and bat are placed. |
| Instruction | “Hit the ball.” |
| Number of Trials | 10 trials per session |
| Teaching Strategy | Forward chaining procedure with either Most-to-Least (MTL) or Least-to-Most (LTM) prompting strategies. |
| MTL Prompting Procedure | 1. After the “Hit the ball” instruction, if there is no response, provide physical prompts to guide the child to hold the bat.2. Provide two physical prompts, then present a modeling prompt3. If two consecutive correct responses occur during modeling prompts, switch to verbal prompting.4. If two consecutive incorrect responses occur during modeling prompts, revert to physical prompting. |
| LTM Prompting Procedure | 1. After the “Hit the ball” instruction, if there is no response, provide a verbal prompt.2. If there is still no response, provide a modeling prompt, and if there is still no response, provide a physical prompt.3. At each prompting level, when a correct response occurs, deliver reinforcement and proceed to the next step. |
| Correct Response | 1. Provide the preferred reinforcer upon completig the current step.2. Upon completing the entire chain, provide additional social reinforcement (e.g., “Good job!”). |
| Incorrect Response | 1. Apply physical prompting three times to correct the error.2. Do not provide the reinforcer.3. No Response |
| No Response | 1. Wait 2 seconds, then provide a higher-level prompt.2. If repeated non-responses occur, lower the prompt level to the previous stage. |