I can only assume that this black and white image was shot during a rehearsal for the episode because, as you can see from the image below, when the similar stretching took place on the broadcast episode the children were seated in a different order.
The other image provided by Rashidi I can only describe as "amazing." What a terrific example of the kind and loving nature of Fred Rogers captured in this photograph and in his comments:
"For Rashidi with thanks for your help today. - Mister Rogers 3/8/88"
Again, my many thanks to Rashidi Barnett and Marilyn Barnett for their willingness to share about their time in the Neighborhood.