## Reflection: Rigor Calculating Flooring Costs - Section 3: Student Practice

Looking back on this lesson, there are two elements that I would like to change next time I teach it!

1. I wouldn't provide students with a budget. Due to the budget, students gravitated toward using flooring that cost an estimate of \$1.00 to save money. This limited the students to easier calculations and decreased the level of rigor in today's lesson.

2. I would have asked students to find the exact cost of flooring for their homes. Originally, I had avoided having students multiply a three digit number (130 square feet area) by decimal number (\$1.39 per square foot) to calculate the cost of flooring per room as this is not a 4th grade standard. However, I have since decided that students could just use a calculator to find the product!

3. I could have also shown students how to create a Google Spreadsheet to record and calculate their costs.

Lesson Modifications
Rigor: Lesson Modifications

# Calculating Flooring Costs

Unit 14: Area & Perimeter
Lesson 12 of 19

## Big Idea: During today's lesson, students will use a chart to calculate the estimated cost of flooring for their home plans.

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1 teacher likes this lesson
Standards:
Subject(s):
Math, Geometry, Geometric Modeling, area (Measurement), perimeter (Determining Measurements), real world applications, calculating costs, flooring
90 minutes

### Kara Nelson

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