What we like about this lesson

Mathematically:

• Addresses standards 8.F.A.3, 8.F.B.4, and 8.F.B.5, 
• Reinforces multiple representations of a function through the use of input/output tables, graphs, and equations
• Requires students to interpret unit rate as slope (rate of change)
• Deepens students’ understanding of slope, $y$-intercept, and domain by having them apply it in a real-world situation
• Allows students to explore plausibility of answers and connect the meaning of mathematical models to a situation in the introduction of the lesson

In the classroom:

• Captures student attention by using an engaging context
• Provides robust opportunities for students to discuss mathematical concepts; includes guiding questions for teachers to use to facilitate discussion
• Uses technology to create a graph and illustrate the mathematics of the lesson
• Offers multiple opportunities for student practice by analyzing pizzas of various sizes