21 Building psychological safety

In this chapter, we are going to explore what needs to be present in a classroom for students to take the risk of participating, and what instructors can do to make that risk feel possible. The chapters before this one have shown how power moves through a classroom, often invisibly, shaping whose knowledge counts, whose voice is heard, and whose mistakes are forgiven. This chapter turns from understanding to action.

The answer we will explore is psychological safety: a condition, not a technique. It determines whether participatory teaching practices work as intended, or whether they become performances that only the confident students feel safe joining.

A condition, not a method

It is easy to confuse psychological safety with active learning, so it is important to examine this difference. They are not the same thing.

Active learning is a method. It refers to structural approaches to teaching, such as group discussion, problem-based learning, debate, and peer instruction, that ask students to do something rather than passively receive a lecture (Bonwell & Eison, 1991).  In Japan, this shift was formally endorsed in a 2012 report by the Central Council for Education of the Ministry of Education, Culture, Sports, Science and Technology, which called for university education to move away from one-directional knowledge transmission (MEXT, 2012).

Psychological safety is a condition (Edmondson, 1999). It refers to whether the people inside a given structure actually feel safe enough to take the risks that participation requires: offering an answer that might be wrong, admitting confusion in front of peers, proposing a half-formed idea, or disagreeing with an instructor.

A classroom can be fully “active” by method and still be psychologically unsafe. Students can sit in discussion circles, receive open-ended prompts, and be asked to co-create material, and still say almost nothing that reflects what they actually think. The underlying fear of being seen as unprepared, incorrect, or disruptive to group harmony has never been addressed. Method without condition produces the appearance of participation without its substance (Ito & Takeuchi, 2021).

A well-known Japanese analysis of failed active learning initiatives found that many implementations collapsed not because the method was wrong, but because institutions rolled it out at scale without attending to what instructors and students needed underneath it: enough structure to feel guided, but not so much control that genuine attempt and error became impossible (Kamekura, 2016). Good intentions and a good method are not enough on their own.

Two traditions, arriving at the same place

Psychological safety is often introduced as an American concept, associated with Harvard Business School researcher Amy Edmondson. She defined it in 1999 as a shared belief among team members that the team is safe for interpersonal risk-taking (Edmondson, 1999). The concept gained wide attention after Google’s internal research, known as Project Aristotle, identified it as the strongest predictor of team performance across the organization. Edmondson’s book The Fearless Organization was translated into Japanese in 2021, where it won a Japan HR Award.

It would be a mistake, however, to treat this as a Western idea recently imported into Japanese classrooms. Japan has its own, older tradition addressing the same underlying problem.

In 2000, engineering professor Yotaro Hatamura published Shippaigaku no Susume (失敗学のすすめ, “An Introduction to Failure Studies”), founding failure studies (失敗学) as a field in its own right. Hatamura’s central claim, developed through decades of engineering disaster analysis, was that failure is not something to be hidden, punished, or treated purely as shame. Handled well, failure is the raw material of creativity and improvement. He argued that failure information naturally hides, decays, and becomes distorted the longer it goes unspoken, and that organizations that build systems for surfacing failure openly avoid the catastrophic failures that come from repeating small, hidden ones (Hatamura, 2000). He went on to found the Failure Studies Society (失敗学会) in 2002.

Hatamura’s framework maps closely onto a distinction now common in Japanese workplace and classroom language: deduction-based evaluation (減点主義), which scores people down for every visible error, and addition-based evaluation (加点主義), which scores people up for having attempted something, regardless of outcome. Japanese organizational writing increasingly identifies deduction-based evaluation, a legacy of postwar zero-defect manufacturing culture, as a direct obstacle to open inquiry. You cannot simultaneously demand mistake-avoidance and demand curiosity, because curiosity requires the freedom to be wrong.

The classroom-facing version of this idea now circulates in Japanese education discourse as classroom psychological safety (教室の心理的安全性): a state in which students can safely express their own thoughts and feelings, understood as a precondition for student agency, creativity, and genuine learning.

The point of tracing this lineage is not to argue over which tradition came first. It is to show that Japanese and Western scholarship reached compatible conclusions from different starting points, one from engineering disaster analysis and one from organizational psychology. A Japanese classroom drawing on psychological safety research is not borrowing a foreign concept. It is joining a conversation it has already been part of.