Graph linear functions while solving for "y" first

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Objective

SWBAT define and graph linear functions.

Big Idea

What should we do if we encounter an equation that - gasp! -- does not have y isolated? Kids learn how to manipulate the equation into slope-intercept form, without using that vocabulary... yet.

Warm-up

10 minutes

Each day, students complete a Warmup that usually consists of spiraling the previous day's material, in addition to older material.  Warm-up problems also sometimes extend lessons that students have encountered before to more unfamiliar contexts.

For a video narrative about how I structure each lesson, and how the warm-up fits in,  click Warm UP.

In this case, the warm-up gives the chance for kids to practice graphing from the previous day, in this case with a fractional coefficient for the slope.  Ensuring this skill is solid is essential to success in today's lesson.

 

A few areas that I zero in on as a go over this problem and check for understanding:

- do students understand that the y-intercept is easily found on the coordinate grid?

- do students check that if the slope is positive, the line is sloping upward?

- can students handle fractional coefficients?

Play of the Day

40 minutes

Huddle

10 minutes

Homework

15 minutes

The homework file is a resource that generally includes 5-7 problems that consist of problems related to this lesson, as well as spiraled review.  I also give the kids the answers to the problems. 

Tonight's Homework: 4 - 2 HW41 Graph linear functions while solving for y first