FIAB EE II Quizizz Lesson

FIAB EE II Quizizz Lesson

8.SP.3 Interpret slope and y-intercept of the bivariate data.

MP.6 Attend to Presicion

P1.B6 Reading/Viewing Closesly

Math Talk Review

We will be looking at a scatter plot graph with a line of best fit. Within this graph we will primarily be looking into finding the y-intercept. We will also focus on finding the slope of the estimated line of best fit.

Academic Vocabulary

• Scatter Plot

• Trend Line/ Line of Best Fit

• y-intercept

• slope

• make sure to use academic vocabulary and complete sentences in your groups.

Math Talk

The graph shows the line of best fit on the amount of time students spend on the computer and watching television. Take a minute to look at the graph and start thinking about what you notice or think about mistakes that students can possibly make when answering questions.

Open Ended

NOTICE & WONDER: With your group discuss what you notice about the graph or think about possible mistakes you can make when answering questions about the scatter plot graph. Remember to use academic vocabulary and complete sentences.

*I notice the graph has a __________ slope.

* This graph shows ___________.

*One mistake that students can make is _______.

* The line of best fit crosses the ___-axis.

Multiple Choice

What is the approximated y-intercept of the estimated line of best fit?

• 210

• 7

• 200

Slope Review

• Pick two points relatively close to the line of best fit. (start at the    y-intercept)

•  $\frac{rise}{run}$  

•  $\frac{up+\ down-}{right\ +}$  

Poll

Select the approximate slope of the estimated line of best fit.

• $\frac{-1}{2}$

• $\frac{1}{2}$

• $\frac{30}{60}$

• $\frac{-30}{60}$

Poll

After today's lesson, how well prepared do you feel for the scatter plot questions on your upcoming test?

• I am still confused

  on how to find the

  y-intercept and the slope.

• I am having trouble

  finding either the

  y-intercept or the slope.

• I am getting better

  at finding either the

  y-intercept or the slope.

• I feel confident

  finding the y-intercept

  and the slope of

  a scatter plot graph.