Ben & Holly's Little Kingdom (2009)

S01E35 Nature Class

Nanny Plum leads the children on an outdoor adventure in the forest, where she teaches them about the wonders of nature. To make the lesson more exciting, she uses her magical powers to turn herself into a frog, captivating the kids with her transformation. The children are thrilled to learn about the environment in such a fun and interactive way, as they explore the woods alongside their enchanting teacher.