## Reflection: Intervention and Extension Solving Systems of Equations - Section 3: How systems are used in Calculus

When I discussed the interval for the area between the curves, I realized the students did not understand when wrote the interval down. The students knew the area was between the 2 points of intersection but they did not understand that we write the interval as the x-coordinates. The students also struggled with understanding the the y or f(x) is the value of the function at a given x coordinate.

To help students I went back to the graph I used to discuss area between curves. I identified the interval on the graph. I also asked the students to tell me the y-value of each function at different x-values in the interval. This visual helped with students understanding the topics on the worksheet.

Intervention and Extension: What is meant by the interval?

# Solving Systems of Equations

Unit 4: Matrices
Lesson 7 of 10

## Big Idea: Solving system of equations is used in calculus when find area between curves.

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40 minutes

### Katharine Sparks

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