A NOVICE IS NOT A LITTLE EXPERT — Key Concepts and Teaching Implications

A novice does not simply have less knowledge than an expert; they think differently and organize knowledge differently.
Expertise involves both more knowledge and a qualitatively different way of using it to solve problems.

Problem representation:
- Experts categorize problems using deep physics principles and underlying laws (e.g., conservation laws).
- Novices categorize problems by surface features and problem descriptors (e.g., keywords like friction, gravity).
Schemata:
- Knowledge stored as rich, interconnected schemata in long-term memory.
- Experts possess deep, generalized schemata; novices have simpler, often incomplete schemata.
Landmarks and categorization:
- Experts recognize problem types by landmarks and states, not just by descriptive terms.
- Novices rely on superficial features and try to match surface cues to past problems.
Prior knowledge and problem solving:
- Prior knowledge shapes how problems are perceived and solved; deeper knowledge enables quicker, more accurate solutions.
- Deep conceptual knowledge guides problem solving, while surface feature knowledge guides initial interpretation for novices.

Reading and interpretation differ: experts interpret in terms of underlying principles; novices focus on wording and surface details.
Categorization differences:
- Experts: deeper, principle-based categorization.
- Novices: description-based categorization.
Solution strategies:
- Experts link problems to correct solution strategies via deep laws.
- Novices take longer to connect problem to a solution due to lack of deep links.

When confronted with a new problem, experts think about the physical conditions and apply appropriate laws before selecting a strategy.
Prior knowledge acts as a scaffold that accelerates correct categorization and solution planning.

Problem categorisation:
- NOVICES: problem-specific categorisation based on surface features.
- EXPERTS: deeper, generalized categorisation based on underlying physical laws.
Use of prior knowledge:
- NOVICES: limited schemata; rely on description cues.
- EXPERTS: rich schemata; interpret states and apply laws.
Approach to solving:
- NOVICES: connect problems to features and described elements.
- EXPERTS: link problems to core principles and solution strategies.

SCHEMA: cognitive framework that organizes knowledge for understanding and solving problems.
Types of knowledge:
- CONCEPTUAL KNOWLEDGE: deep understanding of concepts and principles.
- LANDMARKS: features used to classify and interpret problems (helps with problem matching).
Role of schemata in learning:
- Beginners have rudimentary schemata; their problem-solving is less efficient.
- Experts have extensive schemata enabling rapid recognition and accurate categorization.

Assimilation: incorporating new knowledge into existing schemata.
Accommodation: altering schemata to fit new knowledge.
Misconceptions arise when schemas are incomplete or incorrect; teaching should modify these schemata gradually.

Beginners are not mini-experts:
- They think differently and require different instructional approaches.
Epistemology is not pedagogy:
- Teaching methods effective for experts may not work for novices and can be harmful (expertise reversal effect).
Differentiation from early on:
- Tailor instruction to the learner's prior knowledge and cognitive state.
- Use think-aloud protocols to reveal students’ thinking and miscomprehensions.
Curse of knowledge:
- Highly knowledgeable instructors may forget the novice perspective and skip essential steps.

Worked examples with fading guidance:
- Gradually remove steps as learners gain competence (guidance fading).
Avoid abrupt shifts from worked examples to problems for novices; prefer gradual reduction of support.
Differentiation in reading and problem-solving tasks:
- Provide pathways that align with students’ current schemata.
- Encourage explicit thinking about problem categorization and solution strategies.
Activating prior knowledge:
- Connect new content to what students already know; assess and correct misconceptions.

Do not assume novices are simply smaller versions of experts.
Differentiate early in the learning process based on prior knowledge and skill level.
Make thinking processes explicit to help students build correct schemata.
Create learning activities that help students recognize underlying principles, not just surface features.

Beginners aren’t little experts; they think and know differently.
Children see and learn differently from adults; teaching must reflect this.
A teaching approach for experts will often fail for beginners; differentiate early.
Differentiate at an early stage and tailor to prior knowledge.
Epistemology of the expert is not the proper pedagogy for the learner.
Beware the curse of knowledge: instructors may forget the novice perspective.