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Determine missing coordinates given slope

# Determine missing coordinates given slope

Unit 10: SLOPE REVISITED

Lesson 1 of 3

Lesson 1 of 3

## Objective: SWBAT determine missing coordinates given the slope of a line.

## Big Idea: You've found slope before, given two points. But what if I gave you one point and the slope? Could you find the other point?

Subject(s):

Math, modeling, Algebra, slope (Linear Equations), 8th grade, slopes, linear equations, interpreting graphs

*75 minutes*

1

#### Warm Up

*10 min*

Today's Warm Up is a Mad Math Minute.

For an overview of the structure of the entire lesson, watch my Lesson Structure Overview video.

At this point in the year, I wanted to experiment with driving procedural fluency. In this case, I wanted to not only work on a speed drill - for example, single-digit multiplication facts - but also see, in a teacher-as-researcher moment, whether or not fluency is correlated with math average overall. Please see the reflection section for a discussion of the results of this informal experiment.

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2

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4

#### Homework

*15 min*

Homework 125 is to be completed at home and should take students approximately 15 minutes.

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- UNIT 1: FLUENCIES AND THE LANGUAGE OF ALGEBRA
- UNIT 2: SOLVING LINEAR EQUATIONS
- UNIT 3: INTRODUCTION TO FUNCTIONS
- UNIT 4: INTERPRETING AND COMPARING LINEAR FUNCTIONS
- UNIT 5: SYSTEMS OF LINEAR EQUATIONS
- UNIT 6: EXPONENTS AND SCIENTIFIC NOTATION
- UNIT 7: PARALLEL LINES, TRANSVERSALS, AND TRIANGLES
- UNIT 8: CONGRUENCE AND SIMILARITY THROUGH TRANSFORMATIONS
- UNIT 9: PATTERNS OF ASSOCIATION IN BIVARIATE DATA
- UNIT 10: SLOPE REVISITED
- UNIT 11: VOLUME OF CYLINDERS, CONES, AND SPHERES
- UNIT 12: POLYNOMIALS AND FACTORING
- UNIT 13: QUADRATIC FUNCTIONS

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