K2P 7 Teaching with Analogies - part 1
Analogies in Science
Analogies are essential in science and everyday thinking.
Research indicates that analogical thinking plays a pivotal role in scientific reasoning.
Analogies help explain complex concepts by relating them to familiar experiences.
Historical Examples:
Arrhenius: Conceptualized the greenhouse effect using the analogy of a hotpot.
Kepler: Related planetary motion to a clock mechanism.
Huygens: Compared water waves to light behavior to support his wavelike theory of light.
How Analogies Shape Understanding
Analogies serve as bridges between well-understood ideas (analog) and new science concepts (target):
Example: "The heart is a pump" maps aspects of a pump to the functions of the heart, such as flow and valves (analog = pump; target = heart).
Important Aspects of Effective Analogies:
Appropriateness to the science concept.
Familiarity and interest for students.
Catalyzing higher-level thinking.
Imperfect analogies can still promote reflection and critical thinking.
Understanding the Anatomy of an Analogy
Key Components of an Analogy:
Analog (source): The everyday object, event or story.
Target: The scientific concept being explained.
Mappings: How aspects of the analog correspond to the target.
Not all qualities of the analog will apply to the target (e.g., heart valves like faucets vs. gas movement).
When to Use Analogies
Analogies are necessary when teaching abstract concepts that students cannot easily visualize or experience directly.
Options when teaching abstract topics:
Provide direct experiences (field trips, videos, etc.).
Use analogies to bridge personal experience with the abstract topic.
Importance of Analogies:
They are not optional; they enhance comprehension.
Students often need guidance when forming connections without analogies.
Attributes of Good Analogies
Effective Analogies:
Draw origins from everyday life or relatable contexts.
Avoid causing misconceptions (e.g., atoms-as-solar-system analogy may lead to misunderstandings).
Accessibility based on surface similarities that facilitate understanding.
Mappings in Analogies:
Positive (is like): Shared attributes where the target resembles the source.
Negative (is not like): Identifying non-shared attributes to clarify differences.
Systematic Mappings for Deep Understanding
Basic structural analogies should evolve into more complex, systematic relations:
Examples of Analog-Target Mappings:
Electric Circuit is Like Water Circuit
Electricity is Like Water
Electric Current is Like Flowing Water
Battery Voltage is Like Pump Pressure
Closed Circuit vs. Open Circuit in relation to water flow.
Contextual Use of Analogies
Analogies extend understanding beyond immediate experiences—applicable to micro and macro phenomena that students can’t experience first-hand.
Encourage exploration of complex science topics, serving as a gateway into deeper learning.
Resources for Further Learning
Suggested Materials:
Research on the use of metaphor and analogy in science education.
Brief #8 – tips on teaching with analogies.
Additional resources accessible at: https://www.coursera.org/learn/teachingscience/resources/DUygt