Defining Features Matrix (ALC)

Using Defining Features Matrix activity to facilitate critical thinking in Active Learning Classrooms
Time and Effort
Instructor Prep Time Medium
Student Activity Time Low
Instructor Response Time Low
Complexity of Activity Medium


Defining Features Matrix requires students to categorize concepts according to the presence (+) or absence (–) of critical defining features. This activity helps students develop conceptual and organizational skills and data on their analytic reading and thinking skills.


Use it when you want...

  • To help students develop their skills in organizing information based on a given set of critical defining features,
  • To assess how well students can distinguish between apparently similar concepts or
  • To help students identify, define, and make explicit the distinctions between related ideas.

What students will need

  • Laptop, tablet, or mobile phone
  • Classroom with campus wireless connection


The following workflow is meant to guide how to facilitate a Defining Features learning activity within an Active Learning Classroom.


  • Focus on two or three concepts that are similar enough to challenge or confuse students. Determine which features of these concepts are most critical for students to recognize or understand.
  • Create a Google Docs template for the Defining Features Matrix activity.
  • Make a list of defining features that each concept does or does not possess. After drawing up the list, add a limited number of shared features.
  • Create a table with features listed down the left side and concepts across the top.
  • Determine when you will have students engage in this activity (beginning, middle, end, or outside of class).


  • Present the Defining Features Matrix Google Doc to students.
  • Leave time for students to ask questions about the activity and receive clarification on subordinate items on the list. Let them know how much time they have to complete the activity.
  • At each table, have the group assign a scribe and create a copy of the Google Doc. Place the names of all students at the top of the document. Ensure the instructor is given access rights to the document.
  • Have students place a + or - or a Yes or No on each cell of the table.
  • End the activity. Ask one or two tables to present their document to the room. Ask the rest of the class if they had results not represented by the reporting groups.


  • Review grids in the Google Doc.
  • Provide feedback/grades based on the quality of the grids.
  • Discuss the results of the activity at the next class meeting.

Accessibility and Room Considerations

  • None

Technical Documentation


Example 1

Human Evolution professor assigns several articles on recent discoveries and theories about Neanderthals and their relationship to Homo sapiens. To find out how closely students had read the material and how well they understood the generally agreed-upon differences between modern humans and Neanderthals, he created a Defining Features Matrix. The matrix contains features related to anatomy and likely cultural and social differences and similarities. He creates a document with the matrix with the features down the left side of the table and Homo sapien and Neanderthal on the top row. At the beginning of class, he shared the Google Docs template of the matrix. He gives them five minutes to complete the matrix and collects them. He asks a few tables to share their results and is able to determine some common mistakes. He leads a class discussion on these issues (Angelo 165).

Example 2

An instructor in Comparative Political Systems wants to use a Defining Features Matrix to assess how well his students understand the detailed differences among the federal systems of the United States, Canada, and Germany. After reading chapters in their textbook on these topics, students at each table were asked to complete a Google Docs worksheet that defined a variety of features of government and asked to identify whether each system did or did not have those features represented in their system. Students were given 15 minutes, after which they reported their findings. The activity helped the instructor determine the areas he should focus on during the remaining time in class (Angelo 165).


Angelo, Thomas A., and K. Patricia Cross. Classroom Assessment Techniques: a Handbook for College Teachers. Jossey-Bass, 1993. pp. 164-167.

Keywordscategorize, define, concepts, organizeDoc ID118472
OwnerTimmo D.GroupInstructional Resources
Created2022-05-10 14:51:28Updated2024-04-16 12:40:22
SitesCenter for Teaching, Learning & Mentoring
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