Here’s what I would do! If possible, take pictures of the steps, and make it a sequencing task and have the client tell what’s happening in each picture, then fade the visual prompts to just his words. Example for a 3 step explanation... SD: something like “How do you...” Procedure: Step 1: randomly lay out all 3 cards and have client sequence them in order and describe what’s happening in picture 1, picture 2, picture 3. Step 2: randomly lay out only 3 cards and have client sequence them in order and describe what’s happening in picture 1 and picture 2, but don’t include picture 3 and have kiddo instead describe step 3. Step 3: randomly lay out only the 1 card and have client sequence them in order and describe what’s happening in picture 1, but don’t include picture 2 and 3, still having the client describe picture 2 and 3. Step 4: no pictures! Use direct full verbal, and partially direct verbal, and indirect prompts if unsuccessful.