# Q4, W2: April 6-10 Pre-Algebra

Teacher Kristin Andreason Pre-Algebra 8 April 6-10 Focus 11: Statistics
Standard(s) Taught

#### MAFS.8.SP.1.1: Construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.

MAFS.8.SP.1.2: Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

MAFS.8.SP.1.3: Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept.
Learning Targets and Learning Criteria
• construct a scatter plot by plotting ordered pairs on a coordinate grid representing the relationship between two data sets.
• describe patterns in the plotted points such as clustering, outliers, positive or negative association, and linear or non-linear association and describe the pattern in the context of the measurement data.
• explain the patterns of association of scatter plots of bivariate data in the context of the data sample.
• construct straight trend lines to approximate the linear relationship between the plotted points of two data sets.
• justify the reliability of the trend line by noting the closeness of the data points to the line.
• understand that the trend line does not have to be proportional.
• determine the equation of the trend line that approximates the linear relationship between the plotted points of two data sets.
• interpret the y-intercept and slope of the equation in the context of the collected data.
• use the equation of the trend line to summarize the given data and make predictions regarding additional data points.
Classroom Activities

1st, 2nd and 6th Period Students: There will be a Zoom meeting with Ms. Andreason at the times listed below in the lesson plans. You can go to the Zoom website (https://zoom.us) or download the free Zoom app on your phone, click Join a Meeting and enter the meeting ID (I will send out on Remind before meeting). If you are not on Remind, please text @andreason_ to 81010–at the end of my name, use the number of your class period (1st period would text @andreason1, for example). You can connect through audio only if you don’t want to be on video.

1st: Monday, 11:00 am to 11:20 am; 2nd and 6th periods:  Monday, 12:00 noon to 12:20

Monday:

• Zoom meeting at times indicated above (20 minutes)
• C-Palms Interactive Tutorial Lesson “Scatter plots:  Part 2”  Copy and put this address in your browser:  https://www.floridastudents.org/PreviewResource/StudentResource/167176 and it will take you to this interactive lesson.  Complete the lesson and then take a picture of the certificate at the end and share with me on Remind.  (40 minutes)

Tuesday:

• Go onto Khan Academy and do the first two assigned activities for this week (Estimating Line of Best Fit and Practice Eyeballing the Line of Best Fit). (30 minutes)
• Do the Quizizz that has been assigned to your class on Scatter Plots.  (30 minutes)

Wednesday:

• Do the assigned iReady lesson on Linear Models.  (60 minutes)

Thursday:

• Go onto Khan Academy and do Line of best fit: smoking in 1945 and Estimating Equations of Lines of best fit and using them to make predictions (10 minutes)
• Do pages 258-259 in your Ready Math book.  (25 minutes)
• Do IXL CC.16.  (25 minutes)

Friday:

• Go on Khan Academy and do the other two activities (Interpreting a Trend Line and Interpreting Slope and y-intercept for Linear Models).  (30 minutes)
• Do IXL DD.9.  (30 minutes)
Assignments Due

Assignments due this week:

• Four activities on Khan Academy
• Quizizz on Scatter plots
• Pages 258-259 in Ready Math
• IXL CC.16 and IXL DD.9