Lice-enced to Teach is an episode of the ALVINNN!!! and The Chipmunks series.
After a lice outbreak closes the school, Dave sets up a classroom in the house and acts as the boy's teacher.
Theodore attempts to wake Dave, who's sleeping at his desk, and when he does, Dave's surprised to see The Chipmunks and The Chipettes in his office instead of school. Immediately he believes Alvin got in trouble though Simon corrects him for they were actually sent home due to a lice outbreak. Dave thinks it's extreme for them to be out of school for three days, but Brittany is adamant about not getting lice. While out of school the chipmunks are each tasked with completing a project chosen by Miss Smith, plus additional assignments, at the assistance of the parent. Dave prepares the classroom, and as he begins teaching he is immediately interrupted by Theodore claiming it's snack time and a lice freakout from Brittany. After snack time and another lice freakout, Dave's students temporarily wear protective suits until they get too hot. They waste an hour before working on their individual projects: Simon and Jeanette work on chemistry, Brittany cruelty-free makeup, Theodore photography, Eleanor a cat costume involving Dave, and Alvin song writing. Alvin spends time in the bathroom, and when Dave refuses a snack break, Theodore goes into what the others term "Cookie Deficiency Syndrome." Dave gives in and Theodore passes out cookies for everyone, claiming chipmunks cannot get hyper. Not only do they become hyper, they trash the classroom while Dave watches and attempts to clean up as they go. Miss Smith walks in to find everyone sleeping from a sugar crash, minus Alvin who's still in the bathroom. Dave and Miss Smith bust Alvin for playing video games before Dave takes a stronger stance with their behavior. School wraps up for the day and Brittany checks everyone for lice, though Simon points out she is the one likely to have the problem due to her scratching so they end the day covered in shampoo. The next day the chipmunks thank Miss Smith with a fruit bowl.
- "The New School" 
- Goof: The clock behind Dave moves much faster than it normally would during some uninterrupted scenes of dialogue.
- Goof: Brittany could not have contracted lice from her fellow classmates, thus would not have gave them to her sisters, The Chipmunks, and Dave, because different species of lice infest different species of other animals. As a result, lice that infest humans would not be able to survive on a chipmunk (or vice versa).