I teach mathematics at school level. Lesson plans are soul of any lesson that a teacher takes in a class. I want to create lesson plan on different mathematics topic as per the level of the syllabus (topic example: trigonometry, geometry concepts and others).
As they will be the backbone of any class that i take. I'm working to see that preparation of lesson plan are given due care and pitfalls are avoided.
Please suggest me any resource (net/books/software) that can be help me create excellent lesson plans, that i can use to greatly improve my class.