> Why would I ever want the problem that this solves? This frustrates me a lot when I see our current education system, from the kindergarten to post-grad. Fo

> Why would I ever want the problem that this solves? This frustrates me a lot when I see our current education system, from the kindergarten to post-grad. For instance my 6th grader son's book introduces LCM/HCF out of the blue, something like "this is LCM and here's how you calculate it". Not a single motivating example. Or take design-patterns. I learnt about two dozen of them in college and promptly forgot them within a week. I finally begin to appreciate them after encountering problems at work. Imagine if carpentry is taught by asking pupils to cram about 150 tools over 3 years. Or they start out by saying "Let's build a chair" and discover the need for one tool at a time and mastering them as they go along. They will also learn that they should look for a tool should they encounter a new kind of task.