Now, don't take this one too seriously. Geometric shapes aren't actually mean to each other. Triangles are just a little bit sarcastic, that's all. This is the kind of thing that the best gifts for teachers are made of. Especially gifts for math teachers. Let people know you've got a sense of humor and a brain with your notebook. Whether you're looking for funny journals for teachers, funny gifts for teachers, or just notebooks with funny sayings,...