Geometry week 2

     Getting a little deeper this week into geometry terminology and concepts was a challenge for me. It is hard to remember which shapes fit into which categories, can a square be a rhombus? Can a rhombus be a rectangle? I found this family tree online which helps me remember the relationship between all the different types of quadrilaterals,and I figured I would share:

    This week we transitioned from quadrilaterals to polygons. We learned about regular polygons- which are polygons that have all sides equal and all interior angles equal, but an equilateral polygon- has all sides the same length, but it is not a regular polygon because its interior angles are not all the same. We also and learned how to measure the  sum of the interior angles  with the formula , (N-2)180, where N stands for the number of sides of the polygon when the polygon and then to find one single interior angle you use the formula then divide by N. The formula for finding one interior angle then looks like this, (N-2)180/N. We transitioned  from regular and irregular to learning about prisms and pyramids which also fall under the polygon category. It was nice to refresh my memory and although the book definitions were not fantastic having three dimensional shapes in class to give me a visual representation were really helpful. I believe this is something I would carry over into teaching in my own classroom, if I ever had to teach this subject.