How to stop fearing mistakes and start celebrating them | Hannah Sabo | TEDxBodø

Key Concepts

• Cognitive Dissonance: The discomfort experienced when holding conflicting beliefs.
• Misconceptions: Incorrect or flawed understandings of concepts, particularly common in introductory physics.
• Debugging: The process of identifying and fixing errors in code (and applicable to other learning contexts).
• Growth Mindset: The belief that abilities and intelligence can be developed through dedication and hard work, embracing mistakes as learning opportunities.
• Kernel of Correctness: Identifying the underlying truth or valid reasoning within an incorrect idea.
• Air Resistance: A force that opposes the motion of an object through the air.

From Fear to Growth: Embracing Mistakes in Learning

The speaker recounts a personal journey from fearing mistakes in physics to recognizing their crucial role in the learning process, ultimately shaping both their teaching philosophy and research career. This journey highlights the importance of reframing mistakes not as indicators of inadequacy, but as opportunities for growth and deeper understanding.

Initial Struggles and the Fear of Failure

The speaker initially struggled with physics, experiencing significant anxiety around making mistakes. This fear led to a loss of confidence, hindering their willingness to participate and share ideas. They felt their predictions were consistently incorrect, leading to the belief they were simply “bad” at the subject. This initial experience demonstrates how a negative perception of mistakes can be detrimental to learning. As the speaker states, “I thought that I was bad at physics…I was actually terrified of making mistakes.”

The Teaching Assistant Experience & Designed Mistakes

Becoming a physics teaching assistant provided a turning point. The speaker discovered that researchers had intentionally designed worksheets to elicit common student misconceptions. This approach, based on the idea that “correcting mistakes was a part of the learning process,” normalized error-making. A specific example used was the concept of magnets: students often incorrectly assume that cutting a magnet in half would create a single north pole and a single south pole, rather than two smaller magnets each with both poles. This illustrates how confronting a misconception directly can be a valuable learning experience.

Cognitive Dissonance and the Disconnect from Intuition

Despite the intentional inclusion of mistakes in the curriculum, the speaker observed a decline in student confidence mirroring their own earlier experience. This was attributed to cognitive dissonance – the discomfort arising from holding contradictory beliefs. Students found their everyday experiences contradicted the simplified, idealized world presented in physics class. For instance, students intuitively understand that a bowling ball falls faster than a feather, but are then taught that, in a vacuum, they fall at the same rate. This created a sense of distrust in their own intuition, leading them to believe they were “always wrong.” The speaker recognized this disconnect as problematic.

Finding the "Kernel of Correctness"

The instructor advised the speaker to identify the “kernel of correctness” within incorrect student ideas. Instead of simply correcting the misconception, the goal became understanding why the student held that belief and what underlying truth it was based on. This shift in perspective was transformative, leading the speaker to view ideas and mistakes as “seeds” that could be nurtured into more sophisticated understandings. The feather and bowling ball example was revisited: instead of dismissing the initial intuition, the focus shifted to explaining why a feather falls slower in the real world – due to air resistance.

Mistakes as Bugs: Lessons from Computer Programming

The speaker’s research later focused on how students learn through computer programming. In this context, mistakes manifest as “bugs” – errors that prevent code from running correctly. These bugs are signaled by error messages or unexpected results. The process of debugging – identifying and fixing these errors – became a powerful analogy for learning in general. Debugging requires students to:

1. Reproduce the error: Consistently recreate the problem.
2. Investigate the code: Identify the source of the error.
3. Experiment with solutions: Try different approaches to fix the problem.

Programming environments expect errors and view them as learning opportunities. This contrasts sharply with the initial fear of mistakes experienced in the physics classroom. The speaker notes that “making bugs is expected and it’s viewed as a learning opportunity.”

Applying the Debugging Mindset Beyond Programming

The speaker extends the debugging analogy beyond programming to everyday life, using the example of baking cookies. If cookies consistently turn out tough, one can systematically investigate potential causes (over-kneading, oven temperature) and experiment with solutions (using an oven thermometer, reducing baking time). This demonstrates the universality of the “mistake-as-learning-opportunity” framework.

Reframing Mistakes and Cultivating a Growth Mindset

The speaker concludes by emphasizing the importance of how we frame and react to mistakes. We can choose to fear failure and avoid challenges, or we can embrace mistakes as valuable learning experiences. As the speaker powerfully states, “How we frame and react to our mistakes matters.” The final message is a call to action: “Get out there, try new things, and make mistakes.”

This journey underscores the power of adopting a growth mindset and recognizing that mistakes are not roadblocks, but rather essential stepping stones on the path to deeper understanding.