Threshold Concepts
Learning a new subject is like exploring a maze, students encounter various obstacles and challenges that can make their journey both exciting or daunting. Now within the maze, there are special keys hidden along the way. These keys are called threshold concepts (roadblocks to “aha” moments). They are not just any keys; they are like magical keys that have the power to unlock doors to new areas of understanding, or “aha” moments within the maze.
When students stumble on a threshold concept and use a magical key to unlock the door, it’s like finding a shortcut or hidden passage that leads to a whole new level of comprehension, an “aha” moment. Suddenly the maze does not seem as complex or intimidating anymore.
A fundamental threshold concept in math is the understanding of Functions and their Graphs. Functions are essential mathematical objects that describe relationships between inputs and outputs. They are foundational to many areas of mathematics and have wide ranging applications in science, engineering, economics and beyond. Once students grasp the concept of functions and their graphs, it unlocks a whole new level of understanding and proficiency in various mathematical topics.
In the social sciences a fundamental threshold concept is perspective taking or understanding multiple perspectives. The concept involves the ability to recognize and appreciate different viewpoints, interpretations and experiences within a given social context. Once students grasp the importance of perspective taking, it transforms their understanding of social phenomenon and their ability to analyze and interpret complex social dynamics. Perspective taking is a crucial threshold in the social sciences for developing critical thinking, cultural competence and making interdisciplinary connections.
ways to recognize when students are faced with a threshold concept
- Struggle and Resistance: Students may show signs of struggle or resistance when encountering a threshold concept. This could manifest as confusion, frustration, or reluctance to engage with the material.

- Misconceptions and misinterpretations: Educators may observe common patterns of misunderstanding among students or recurring misconceptions that persist despite clarification and instruction.
- Critical questions and reflections: Students may ask probing questions or engage in reflective discussions that indicate they are grappling with the underlying principles of the threshold concept. They may question assumptions, seek clarification, or express curiosity about alternative perspectives, signaling a deeper level of engagement with the material.
- Inconsistencies in Learning Progress: Educators may notice inconsistencies in students’ learning progress or performance related to the threshold concept. Some students may demonstrate sudden breakthroughs or “aha” moments where they suddenly grasp the concept, while others may continue to struggle or show minimal improvement over time.
- Metacognitive Awareness: Students may reflect on their learning process and articulate their understanding (or lack thereof) of the threshold concept. They may express uncertainty about their comprehension, acknowledge areas of confusion, or articulate strategies they are using to overcome obstacles.
- Application and Transfer: Students may struggle to apply or transfer their understanding of the threshold concept to new contexts or problem-solving tasks. They may demonstrate difficulty in recognizing when and how to apply the concept appropriately, indicating a need for additional support or scaffolding.
- Peer Interactions: Educators may observe students discussing the threshold concept with their peers or collaborating on problem-solving tasks. Peer interactions can provide valuable insights into students’ understanding, as they may reveal common misconceptions, alternative perspectives, or strategies for overcoming obstacles.
Here is what educators can do:
- Provide Explicit Instruction
- Educators can offer clear explanations and demonstrations of the threshold concept, breaking down complex ideas into smaller, more digestible components. They can use analogies, visual aids, and real-world examples to illustrate the concept and make it more accessible to students.
- Encourage Exploration and Inquiry
- Educators can create opportunities for students to explore the threshold concept through hands-on activities, inquiry-based tasks, and open-ended questions. They can encourage curiosity, experimentation, and independent investigation, allowing students to discover and construct their understanding of the concept.
- Foster Collaborative Learning
- Educators can facilitate collaborative learning experiences where students can engage in discussions, share perspectives, and collaborate on problem-solving tasks related to the threshold concept. Peer interactions can provide valuable insights, promote deeper engagement, and foster a supportive learning community.
- Address Misconceptions
- Educators can address common misconceptions or misunderstandings related to the threshold concept by providing corrective feedback, engaging students in dialogue, and offering opportunities for reevaluation and revision of their understanding. They can encourage students to question assumptions, challenge preconceived notions, and reconsider their perspectives.
- Promote Metacognitive Awareness
- Educators can help students develop metacognitive awareness by encouraging reflection on their learning process, monitoring their understanding, and identifying areas of confusion or uncertainty.
- They can teach students strategies for self-assessment, self-regulation, and self-correction, empowering them to take ownership of their learning journey.
- Offer Scaffolding and Support
- Educators can provide scaffolding and support to help students navigate the challenges associated with the threshold concept.
- This may involve breaking down complex tasks into manageable steps, providing guided practice and feedback, and offering additional resources or instructional assistance as needed.
- Create a Safe Learning Environment
- Educators can create a safe and supportive learning environment where students feel comfortable taking risks, making mistakes, and asking questions related to the threshold concept.
- They can foster a growth mindset by emphasizing the value of persistence, effort, and resilience in the face of challenges.
- Differentiate Instruction
- Educators can differentiate instruction to meet the diverse needs of students facing the threshold concept.
- This may involve providing additional enrichment opportunities for students who grasp the concept quickly, offering extra support for struggling students, and adapting instructional materials to accommodate various learning styles and preferences.