According to case-based reasoning, our memory store millions cases so that we have many experiences. And we use previous experiences to solve problems in new conditions. It shouldn’t be forgotten individuals could best learn from their mistakes. Case-based reasoning has most effective model for promoting learning. Learning by Design (LBD) uses CBR’s theory of learning. Learning by Design like Project-based inquiry approach. LBD could use for middle school students. LBD include individual activities in design/redesign and investigate-explore phases. LBD activities are design and experiment, creating and refining design rules of thumb, poster session, plan design, pin-up session, test design, and gallery walk. Through LBD, students integrate a variety of science, design, collaboration, and communication practices. We must be careful CBR care about individual but it doesn’t care collaboration. LBD complete lack of collaboration with activities. In my opinion LBD activities should be make small groups. Students could understand and explain challenge through LBD activities. My questions:

Let’s say "I have experiences about something and of course you have experiences about same thing but yours are different mines ."  How we know which one of us is correct?  I think this situation is weakness case-based reasoning.

In my opinion, our learning system hasn’t substructure for CBR. How can we build it?