SOL 
A.11  The student will collect and analyze data, determine the equation of the curve of best fit in order to make predictions, and solve realworld problems, using linear and quadratic models.


Common Core Standards 
8.SP.3 
FLE.1a 
FLE.2 
SID.6a 
SID.6b 
SID.6c 
SID.7 
SID.8 

Warmup 
 ExamView Quiz: Box and Whisker Graphs

Lessons 
 Notes:
Finding Median Line of Best Fit (pdf)
 Activity:
Project Graduation Line of Best Fit (doc) 
(pdf)
 Notes: TI83 Best Fit Models (pdf) *New 2009 SOL Content*
 Notes: TI83 Curve Fitting with Residuals (pdf) *New 2009 SOL Content*

Videos 
 Video: PH Making a Scatter Plot
 Video: PH Using Scatter Plots and Trend Lines to Make Predictions
 Video: PH Modeling Data Using a Linear, Quadratic, or Cubic Model *New 2009 SOL Content*
 Video: PH Writing an Equation for a Trend Line
 Video: PH Writing an Equation for a Line of Best Fit

Explore Learning 
 Determining a Spring Constant: Place a pan on the end of a hanging spring. Measure how much the spring stretches when various masses are added to the pan. Create a graph of displacement vs. mass to determine the spring constant of the spring.
 Estimating Population Size: Adjust the number of fish in a lake to be tagged and the number of fish to be recaptured. Use the number of tagged fish in the catch to estimate the number of fish in the lake.

Geogebra 

Internet
Sites 
 Interactive:
Linear Regression Applet  plot up to 50 points and predict
the line of best fit
 Interactive
Notes: Line of Best Fit  lessons and practice problems
at Regentsprep.org
 Notes: Using the TI Calculator to Find the Quadratic Function *New 2009 SOL Content*

Tasks 

Homework 
 Casio Calculator Investigation (pdf)
 Line of
Best Fit Worksheet (doc) 
(pdf)
 Linear
Equation Experiments (doc)  (pdf)
 Glencoe PWS (pdf)
 Glencoe SG (pdf)

Journal 

Correlation: What situations in your own life would present
a negative correlation?

Study Guide 
 ExamView Quiz: Line of Best Fit
 Prentice Hall Quiz: Data Analysis
 Prentice Hall Quiz: Line of Best Fit

Other 
