Mr. Grouper is a character from the children's television show The Magic School Bus. He serves as the teacher for a group of curious students, guiding them on various educational adventures. His character is known for being enthusiastic and supportive, encouraging students to explore and learn about science. In the series, Mr. Grouper often leads his class on field trips in the magical school bus, which can transform and travel to different environments. Through these adventures, he helps students understand complex scientific concepts in a fun and engaging way, making learning enjoyable and memorable.