## penny_problem_open.pptx - Section 1: Opening

penny_problem_open.pptx
penny_problem_open.pptx

# Penny Problem

Unit 3: Systems of Equations
Lesson 9 of 13

## Big Idea: This lesson is great on a variety of levels. First, students are solving a real-life problem that requires them to grapple with "unfriendly" numbers. Second, students are challenged to think about accuracy in measurement through the lens of systems of eq

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Standards:
Subject(s):
Math, Algebra, systems of equations, precision, accuracy, Constraint, 9th grade
50 minutes

### James Bialasik

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