Teaching Secondary Mathematics: Techniques and Enrichment Units, 7th edition has been thoroughly revised to  discuss current methods of teaching mathematics, considering all aspects and responsibilities of the job, beginning with a brief overview of the history of mathematics education and how it has evolved over time to include standards for teaching and assessment.  The authors address how to craft rich and effective daily lesson plans, and how to use a variety of instructional tools and strategies to reach all students in a classroom.  Problem solving is a key focus from its instructional underpinnings to its recreational and motivational aspects.  The second part of the text provides mathematics teachers with a collection of enrichment units appropriate for the entire secondary school curriculum spectrum.