Dufferin-Peel Catholic DSB Lesson Study #1

Debrief: Introduction to Triangles

by Nina Bekanovic, OCT, Shannon Jordan, Natasha Moore, OCT, Athena Prosdocimo, OCT

Observational Notes

• Students were very engaged and actively participating.
• We anticipated that students would be able to draw better triangles on the Smart Board; an equilateral triangle did not necessarily appear to have all equal sides on the screen.
• We anticipated that students would connect the colour of the pipe cleaners to the length of the side in a triangle; by the third type of triangle students still required prompting to connect the two attributes.
• Time was limited, and we did not have the opportunity to connect the types of triangles.
• The observation walk went smoothly with minor prompting to minimize talking.
• Students required more prompting to find various sizes of triangles in the pictures.
• It was harder to stay on script due to the amount of prompting needed.
• The student question was to be completed for homework.

Next Steps

• Fewer pictures were needed for the minds-on activity because of time constraints. Three instead of five pictures were used.
• Start with the quilt picture instead of the sailboats, as there is more opportunity for students to pick out various sizes and types of triangles.
• Focus on key terms such as “all,” “two,” or “no” sides of equal length.
• Take up homework and incorporate the types of triangles into triangle art.