Statistical investigations are a process that includes formulating questions, collecting and analyzing data, and interpreting results. The Teacher Tutorials provide background information and key concepts related to statistical investigations. Teachers should read the tutorials before using the Classroom and Supplemental Activities with students. Teachers may also benefit from revisiting these tutorials while using the activities, with the added perspective of seeing what students do during classroom lessons.  There is a tutorial on each of the four steps of the statistical investigation process [4].

Engaging in a statistical investigation if often an iterative and cyclical process that doesn't follow a directly linear path. For example, an individual may collect data before formulating a question or may collect more data after analysis in order to answer new questions. However, in these tutorials, the four steps are introduced in a linear way to provide the most support for students who are new to the process.


Step 1: Formulate Questions

This tutorial explores what it means to construct and operationalize a statistical question and how to support student investigators in posing such questions.

Go to the Step 1 Tutorial

Step 2: Collect Data

This tutorial discusses different types of data, how the variables of interest influence the selection of data, and methods of collecting data.

Go to the Step 2 Tutorial

Step 3: Analyze Data

This tutorial explains representing data graphically, selecting appropriate graphs, summarizing graphically displayed data, and selecting appropriate summarizing characteristics.

Go to the Step 3 Tutorial

Step 4: Interpret Results

This tutorial describes what it means to interpret results, specifically in connecting the shape, spread, and center to the statistical question; provides recommendations on how to support students in this step of a statistical investigation; and uses sample data stories to demonstrate interpretation of results.

Go to the Step 4 Tutorial