Here, the teacher is reviewing the concept of scatterplots and the three types of associations for scatterplots that students have been working with.

Together with their teacher, students are using famous people and their ages to generate their own data set to use for a scatterplot and apply to a line of best fit.  This lesson focuses on the depth of the content standard by asking students to find a linear model for the data they collected and to interpret the meaning of the slope and intercept.  This lesson targets the aspect of rigor called for by the standards, application.  Students are using their knowledge of linear models to make meaning of their bivariate data. 

Teacher questions students about the three possible things that could happen when they estimated their guess for each student.  Students explain all three scenarios.  

Teacher poses the question:  "Are you a good guesser?" Students then share why they think they are or are not a good guesser based upon their data from the table they created. 

Students are creating their own scatterplots from their data. Students are explaining to each other how the need to set up their graph and what they need to be graphing.