Choose from Geyer's wide selection of math books to find the perfect tool to help teach your students geometry. The Studies in Geometry Series is a great addition to the classroom to explain specific topics in your lectures. The topics covered are constructions, triangles, circles, and proofs. The Quick Study guide is good for students to keep in their binders as an easy reference of definitions, principles, and equations. Our workbooks are for grades Pre-K to 8th grade. The practice problems are real world examples and use terminology any student can understand.