Learning Assistance Scheduling for Similar Wrong-Answer Questions
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Solution Overview
Problem
Existing learning support systems fail to effectively utilize incorrectly answered questions by submitting similar questions during subsequent learning sessions, leading to inefficient learning.
Innovation Solution
A learning support system that adjusts question intervals and submission dates to prioritize the advanced submission of incorrectly answered questions and align or delay submission of similar questions based on correct answer rates and Ebbinghaus' forgetting curve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If similar questions are submitted at regularly spaced intervals, then learning coverage is broad, but incorrectly answered questions are not reinforced adequately
Solution Approach 1:
The system performs preliminary identification of incorrectly answered questions and pre-schedules their resubmission at optimized intervals before the learner completes all questions. This ensures that problematic questions are reinforced at scientifically determined intervals based on the Ebbinghaus forgetting curve, improving learning effectiveness without requiring manual intervention.
Solution Approach 2:
The system implements a feedback mechanism that tracks learner responses to each question, identifies incorrect answers, and uses this information to adjust future question scheduling. The feedback loop continuously optimizes which questions are resubmitted and when, based on actual learner performance data, thereby improving both efficiency and effectiveness.
2Quantity of substance
If all questions are submitted at once, then comprehensive coverage is achieved, but learner overload and retention decrease
Solution Approach 1:
The system segments the complete question set into multiple batches distributed over time. Instead of presenting all questions at once, it divides them into manageable groups and schedules their presentation across different time points, preventing learner overload and improving knowledge retention through spaced repetition.
Solution Approach 2:
The system employs periodic action by scheduling question submission at regular intervals determined by the Ebbinghaus forgetting curve. Questions are revisited at progressively increasing intervals (e.g., 1 day, 3 days, 7 days, 16 days), creating a periodic review pattern that reinforces memory retention while maintaining comprehensive question coverage.
3Productivity
If question intervals are extended, then learning speed increases, but forgetting curve effectiveness decreases
Solution Approach 1:
The system implements dynamic question interval adjustment based on individual learner performance. Rather than using fixed intervals, the system adapts the timing of question resubmission according to the Ebbinghaus forgetting curve and actual learner responses, optimizing the balance between learning speed and memory retention for each specific question and learner.
Solution Approach 2:
The system changes the time parameter of question submission dynamically. It adjusts the interval between question presentations based on calculated optimal values derived from the forgetting curve, transforming static scheduling into a dynamic process that responds to learner needs while maintaining efficient progress.
Data Source
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AI summary
[Problem] To provide a learning assistance system that enables problems answered incorrectly to be presented along with similar problems the next time learning is performed. [Solution] A learning assistance system 10 includes: a problem storage unit 12 in which are registered a plurality of problems and answers corresponding to the plurality of problems for a learner 4 to learn knowledge; a problem presentation interval deciding unit 14 which decides a problem presentation interval so as to increase a learning effect of the learner 4 when deciding a date for presenting each of the plurality of problems; a similar-problem early-presentation adjusting unit 17 which adjusts the problem presentation interval to adjust the date for presenting a problem that is similar to a problem that the learner 4 answered incorrectly, so as to be presented earlier than a planned presentation date and to be aligned with the presentation date of the problem that was answered incorrectly; and a problem presenting unit 18 which presents each problem to the learner 4 on the basis of the problem presentation interval decided or adjusted by the problem presentation interval deciding unit 14 and the similar-problem early-presentation adjusting unit 17.