What's the difference between a boring teacher and a boring book?
You can shut the book up.
I walked into the school for disabled kids and asked them if they knew how to play "Heads, Shoulders, Knees, and Toes." Turns out they only knew how to play "Heads, Shoulders, Wheels, and Frame."
What’s a teacher's favorite tree?
A geometry.
Where can you find the freshest vegetables? A school for the disabled!
My music teacher was investigated, but she was the one that taught me my fingerings.
The teacher asked her class to use "definitely" in a sentence. Little Johnny raised his hand to answer, yet the teacher passed him and went on to Kevin. "The sky is definitely blue." "Very good Kevin, but the sky can also be blue or black," the teacher replied.
Little Johnny raised his hand again as high as he could, yet the teacher passed right over him and picked Annie from the back of the room. "The grass is definitely green." "Very good Annie, but it can also be brown." Little Johnny was waving his hand like crazy seeking her attention. Finally, she called on him. "Mine's more of a question, but do farts have lumps in them?" "Why no, Johnny, why would you ask such a question?" She questioned. "Well, if they don't have lumps in them, then I definitely just shit myself."
Teacher: Where's your homework?
Student: At home...
Teacher: What's it doing there?
Student: Having a better time than me.
How does a mathematician get tan?
sin/cos.