This lesson covers random sampling. It's an engaging way for students to understand how to make inferences given tables and graphs. I picked things that interest 7th graders so that it's engaging like favorite music, favorite social media app, favorite movie, favorite sport and others.
This should be a lesson after introducing the key vocabulary terms of random sample, range, inference, variability. Teacher will use the pages with the graphs and tables as an answer key. Teacher will make another copy of all the tables and graphs and cut all of them. Keep the graphs and tables for each group together. You should laminate them also, I laminated them with scotch tape because they are so small. And use a paper clip and a sandwich bag to keep the 2 tables and 2 graphs for each group together.
Put each of the group questions and sentence starters in a plastic cover so they don't get torn and you can reuse. Have students work in groups of 4. Each team member will answer one out of four questions. All 4 team members need to match the graph with the table and tape it on to the plastic cover where it says "tape graph here" "tape table here" The point is to see if they can read a table and a graph and match it. The questions are helpful for students to understand how to make inferences about 7th graders based on the data provided.
This lesson may take two days to teach. On the third day each group will present their tables and graphs on the projector screen. Teacher may choose one or two questions for the group to answer and also explain the graphs with the tables. While the presenters are presenting the rest of the class may write one to two inferences about the graphs. Do this until you go through the 8 groups. This can be used as an assessment grade.