Circles all Around
Students investigate circles. In this middle school mathematics lesson, students explore the relationship between the diameter of a circle and its circumference.
6th - 8th Math 5 Views 6 Downloads CCSS: Designed
Circumference and Diameter Relationship
With a ruler and a piece of string, geometers measure the circumference of a circular object. Tracing and folding it, they find the diameter of the resulting circle so that they can relate it to the circumference. It is recommended that...
6th - 8th Math CCSS: Designed
Round and Round We Go — Exploring Orbits in the Solar System
Math and science come together in this cross-curricular astronomy lesson plan on planetary motion. Starting off with a hands-on activity that engages the class in exploring the geometry of circles and ellipses, this lesson plan then...
5th - 8th Math CCSS: Adaptable
Ratios and Proportional Relationship
This comprehensive unit on proportional thinking is an excellent resource for any middle-school math class, whether added wholesale to the curriculum or used to supplement existing material. Lead-in problems and activities culminate in a...
5th - 7th Math CCSS: Designed
Circles: Radius, Diameter and Circumference
Fascinating discussion regarding the origin of Pi accompanies a detailed explanation of how to find the circumference of a circle. Since this is the first installment in a series on circles, the concept of circumference is separated into...
11 mins 4th - 11th Math
Circumference and Areas of Circles
Middle and high schoolers listen to a scenario about a puppy and use the scenario to develop formulas in order to find the area of a circle. In this circumference lesson, pupils understand how to find the radius, diameter, area of a...
7th - 12th Math CCSS: Adaptable