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PrintTeacher  Felicia Taylor 

Subject Area  Intensive Math 

Grade Level  8th 

Week #  31 

Unit of Instruction  Focus 10: Applications of Functions 

Standard(s) Taught 

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.
MAFS.8.EE.3.8.a
Understand that solutions to a system of two linear equations in two variables correspond to points of intersection of their graphs, because points of intersection satisfy both equations simultaneously.

Learning Targets and Learning Criteria 

Students are successful when they can…
 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 yintercept 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.
 graph a system of linear equations.
 identify the points of intersection as a solution to a system of linear equations.
 define the solution to a linear system of equations of equations as the intersection point on a graph.

Classroom Activities 

Monday (1st Period) / Tuesday (7th Period)
 Finish Slope and Slope Intercept
 Y.7 Write a linear equation from a slope and yintercept
 Y.8 Write a linear equation from a graph
 Z.14 Identify linear and nonlinear functions
 Scatter Plots
 CC.14 Scatter plots
 DD.8 Outliers in scatter plots
 DD.9 Scatter plots: line of best fit
 Functions DIA Review on Nearpod
Wednesday (1st & 7th Periods) Early Release Day – 40 minute class
 Functions DIA Remediation.
 Finish IXLs from Monday/Tuesday.
Thursday (1st Period)/ Friday (7th Period)
 Systems of Linear Equations IXLs
 AA.1 Is (x, y) a solution to the system of equations?
 AA.2 Solve a system of equations by graphing
 AA.4 Find the number of solutions to a system of equations by graphing

Assignments Due 

Summatives
None
Formatives
 CC.14 Scatter plots
 DD.8 Outliers of scatter plots
 DD.9 Scatter plots: line of best fit
 AA.1 Is (x, y) a solution to the system of equations?
 AA.2 Solve a system of equations by graphing
 AA.4 Find the number of solutions to a system of equations by graphing

Additional Resources 

All IEP accommodations will be provided each class.
