Education Technology

NSW: Linear Regression Journey

by Texas Instruments


  • Fit a Least Squares Regression line
  • Interpret the intercept and gradient
  • Extrapolate and Interpolate
  • Understand Least Squares method


  • Least Squares Regression
  • Independent variable
  • Dependent variable
  • Mean (average)
  • Extrapolate
  • Interpolate

About the Lesson

A weather balloon is released and travels upwards. On its journey, will the speed of the weather balloon, increase, decrease or remain constant? This question is posed to students. An amazing video is included from which students are able to collect and model the data using the appropriate regression model. Just how accurate is a linear model? Students use their equation to make predictions. 

Watch the activity tutorial