- GeometryLee Stiff, Ron Larson
- Developing mathematical reasoning in grades K-12Lee Stiff, Frances R. Curcio
- Heath geometryRon Larson, Laurie Boswell et al.
- Passport to MathematicsLee Stiff
- Heath GeometryLee Stiff
- McDougal Littell Middle School MathLee Stiff
- Passport to Mathematics Book 2 (Teacher's Edition) (2002)Lee Stiff
- Heath Algebra 1Lee Stiff
- Algebra 1 (Applications, Equations, & Graphs)Lee Stiff
- California Middle School MathematicsLee Stiff
- Passport to Algebra and GeometryLee Stiff, Ron Larson
