Find the LCM and GCF using the ladder method, with 7th grader Kermit.

Part of the student-created tutorial project at Mathtrain.TV.

Mathtrain.TV is a free, educational “kids teaching kids” project from Mr. Marcos and his Students at Lincoln Middle School in Santa Monica, CA.

Mathtrain.TV now plays on mobile devices, including iPads & iPhones.

StudentCreated.TV is a free site for sharing student-created tutorials for all school subjects. Videos also play on mobile devices.