When ChalkZone became its own series, this short was featured as the second segment of the show's second episode (which erroneously aired as the fourth episode, despite this episode being Penny's first visit to ChalkZone).
When Reggie erases Penny's formula off the chalk board, Rudy shows her how she can recover it - by venturing into ChalkZone.
Home video releases
- ChalkZone: The Complete Series
| "Gee, this is harder than I thought."|
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