# math notes

Telling Time Song for Kindergarten and First Grade

We are working on telling time in first grade and I wanted to share this cute song in case anyone else is teaching time right now. This is another one of those songs that I have known forever but that I don't know the origins of- if it's yours let me know! We've been singing…

1,1,2,3,5,8...The Golden Ratio

About the Golden Ratio: The Golden Ratio can be illustrated within special dimensions of Sprials, Triangles and Rectangles where the ratio of the length of the short side to the long side is .618, was noted by ancient Greek architects as the most visually pleasing rectangle and its dimensions were used to construct buildings such as the Parthenon.:

Calculus for Beginners and Artists | Supplemental Resources | MIT OpenCourseWare

Calculus for Beginners and Artists is an online textbook that provides an overview of Calculus in clear, easy to understand language designed for the non-mathematician. Thank you MIT OpenCourseWare for awesome, free resources and classes!!!