Learning Support System Optimizing Question Intervals
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Solution Overview
Problem
As the number of subjects to be studied increases, learners face inefficiencies in their learning process due to increased daily quotas and repetitive learning of already established information, leading to reduced time for studying new questions.
Innovation Solution
A learning support system that includes a question storage unit, a question interval determination unit, a question frequency adjustment unit, and a question submission unit, which determines optimal question intervals based on the Ebbinghaus' forgetting curve and adjusts question frequencies by multiplying intervals for low-learning-need questions, thereby enhancing learning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of subjects to be studied increases, then the learner's knowledge coverage expands, but the daily learning quota increases making it easier to set back
Solution Approach 1:
The system applies different question intervals for different subjects based on learning needs. By analyzing answer correctness and learning requirements, the system dynamically adjusts the interval for each subject, allowing learners to spend more time on difficult subjects and less time on mastered subjects, thus managing daily learning quotas efficiently across multiple subjects
Solution Approach 2:
The question interval is not fixed but dynamically adjusted based on real-time learning performance. The system continuously monitors answer correctness and modifies intervals accordingly, enabling adaptive time management that responds to changing learning needs across different subjects
2Reliability
If learners repeatedly study already established information, then knowledge retention is maintained, but time devoted to new questions is reduced resulting in learning inefficiency
Solution Approach 1:
The system uses feedback from answer correctness to adjust question intervals. When learners answer correctly, the interval is extended to reduce repetition frequency. This feedback mechanism automatically identifies already established knowledge and reduces redundant study time, directing effort toward new or difficult questions instead
Solution Approach 2:
The system changes the time parameter (question interval) based on learning performance. By extending intervals for mastered subjects and reducing them for difficult subjects, the system optimizes the distribution of study time, ensuring efficient use of resources while maintaining knowledge retention through spaced repetition rather than repeated exposure
Data Source
AI summary
To provide a learning support system that enables efficient lifelong learning. A learning support system 10 includes a question storage unit 12 in which a plurality of questions for a learner 4 to acquire knowledge and answers respectively corresponding to the plurality of questions are registered, a question interval determination unit 14 configured to determine, in determining a date and time for submitting each of the plurality of questions, a question interval such that an effect of learning by the learner 4 is enhanced, a question frequency adjustment unit 16 configured to multiply the question interval of a question of low learning need for the learner 4 by a predetermined multiplying factor that reduces a frequency of the question of low need, and a question submission unit 18 configured to submit each of the questions to the learner 4, on the basis of the question interval determined by the question interval determination unit 14 and the question interval having been adjusted by the question frequency adjustment unit 16.