## Reflection: Student Feedback Speaking of Spheres (Day 2) - Section 3: Closure

Some things that I want to remember at the conclusion of today's lesson:

1. Some students found it easier to calculate the sphere volume by finding the volume of the cubic box and multiplying by 0.524. One student stated that why bother with the sphere formula if it was harder. I answered that she could find the volume however it was easiest for her. I just wanted her to understand what she was doing and how to apply the aphere formula when necessary.

2. Another good closure question that I should have added was to explain why the volume values of students handling the same sports ball, was slightly different. This issue came up and I verbally asked the whole group. Some correct responses were:

• Miscalculations
• Differences in measuring
• using 3.14 instead of the "pi" on the calculator
• Rounding

After the lesson reflection
Student Feedback: After the lesson reflection

# Speaking of Spheres (Day 2)

Unit 10: Volumes of Cylinders, Cones, and Spheres
Lesson 5 of 7

## Big Idea: In cooperative groups students discuss and apply methods for determining the volume of a sports ball.

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Standards:
Subject(s):
Math, volume (3-D Geom), Geometry, circumference (Determining Measurements), volume of cube, Volume of spheres, Cooperative Groups
50 minutes

### Mauricio Beltre

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