Teacher Toolkit

Thinking Routines and Discursive Strategies

Four Corners

Who is this for?

All grades

Why use it?

To collaborate with peers to support a position on a question or issue.

Elements of the routine encourage students to shift their thinking in response to new learning.

When to Use it?

Responding to a question or statement on an issue at any stage in inquiry process

Thinking Skills

Collaboration, supporting claims with evidence and reasoning, exploring assumptions, listening and reasoning fair-mindedly

Bloom’s Level


What is it?

Students individually and collectively surface their prior knowledge, assumptions, and conclusions about an essential question. Hearing 4 distinct positions on the same question or statement exposes students to multiple, divergent viewpoints, rapidly increasing the breadth of knowledge available to each student. Inviting students to shift corners in response to others’ reasoning encourages the open-mindedness, curiosity, and humility characteristic of an inquiry disposition.


4 signs: strongly disagree, disagree, agree, strongly agree


Whole class

1. Reflect on the outcomes, enduring understandings, and essential questions for the inquiry you are initiating. Then …

2. Generate a series of provocative statements.

3. Create 4 signs, one for each corner of the room: strongly disagree, disagree, agree, strongly agree. Affix these to the corners.

4. Prepare to display statements and process on a digital projector.

How does it work?

1. Explain the process to students:

a. A statement will appear.

b. Decide which corner you would like to/can speak from in relation to the question.

c. Go to the corner and form a circle with peers. If there are more than 4 peers in a corner, divide into smaller groups of roughly equal size.

d. In small groups, one person starts, stating why they’ve chosen this position. Moving clockwise, the next students share their own thinking. When it’s the first person’s turn again, the student creates a statement that incorporates the ideas peers have just shared.

e. The first speaker from each small group in each corner then shares thinking with the large group.

f. Students may shift corners if moved by others’ reasoning.

g. Sharing concludes by identifying a question(s) that the group’s thinking raises.

h. Teacher record this question(s) on an anchor chart for future reference.

2. Present Statement 2

3. Facilitate process described above

4. Repeat for next statements


Move onto Stars and Constellations Strategy or ask each group to do a Here’s What, So What, Now What Huddle.


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Teacher ToolkitFour Corners