The March issue of Mathematics Teacher is out, with several interesting articles:

• Teaching Algebra and Geometry Concepts by Modeling Telescope Optics by Lauren M. Siegel, Gail Dickinson, Eric J. Hooper and Mark Daniels
• Tangent Lines without Calculus by Jeffrey M. Rabin
• The Dreaded “Work” Problems Revisited: Connections through Problem Solving from Basic Fractions to Calculus by Felice S. Shore and Matthew Pascal (Free preview)
• <!– Developing Knowledge of Teaching Mathematics through Cooperation and Inquiry
  Maria Lorelei Fernández –> Developing Knowledge of Teaching Mathematics through Cooperation and Inquiry by Maria Lorelei Fernández