I wanted to try something different and apply some of the suggestions from a professional development day, so I taped complex shapes to the windows and whiteboards. I split the class into 4 groups, and they completed taking the perimeter of each shape in circuit.
After measuring, adding, and finalizing their perimeters, all 4 groups compared their results, in every shape, 3/4 of the groups had almost identical results. The other quarter was wildly too small, every time – but which group it was changed every shape. (Interesting to me!)
Core Competencies: Communication
Facet: Students combine their efforts with those of others to effectively accomplish learning and tasks.
Profile: I contribute during group activities with peers and share roles and responsibilities to achieve goals.
First Peoples Principles of Learning: Learning is embedded in memory, history, and story.
Big Ideas:
- Closed shapes have area and perimeter that can be described, measured, and compared.(5)
- Properties of objects and shapes can be described, measured, and compared using volume, area, perimeter, and angles. (6)
Curricular Competencies:
- Develop, demonstrate, and apply mathematical understanding through play, inquiry, and problem solving (5&6)
Content:
- relationships between area and perimeter (5)
- perimeter of complex shapes (6)
