The Big Open Source Math Book (BOSMB) is a compilation of all of the lesson plans I've ever written as a teacher of high school mathematics, and hten some. Each lesson plan is contained within its own ...

Discover the area formula of circles by separating into congruent shapes and using their understanding of other polygons. Give students an opportunity to estimate the area of the circular objects that ...

When new teachers hear the phrase differentiated instruction, a look of confusion often comes across their faces. Although this educational term is used quite frequently, what it looks like in the ...