Geometry, and more specifically circles, are everywhere around us in architecture and design. During this unit, students will explore the use of circles in architecture and design by using real-life examples as primary sources. Architects and designers need to have a thorough understanding of circles and how to calculate their area and circumference, as well as knowing how to adjust those drawings of circles from a blueprint to an actual model. In this project based unit, students will understand how to calculate the area and circumference of a circle, demonstrate their understanding of the properties of circles and scale factor, become familiar with how to use primary sources, demonstrate their understanding of how to make estimations and inferences. 6 - 8 9 - 12 Mathematics PBL