Knowledge tree

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Knowledge tree is a tree structure in which individual pieces of knowledge are associated with other pieces in a tree hierarchy. All books form a tree with sentences forming paragraphs, then sections and then chapters of the book. The purpose of the tree is to organize knowledge into easily accessible categories. In SuperMemo, the knowledge tree is displayed in the Contents window.

Knowledge tree in SuperMemo makes it easy to understand the emergence, and the structure of semantic networks in memory. Activations of memory tend to cluster in sets of interconnected concepts maps. Such activations may underlie the power of the learn drive. As the learn drive tends to favor learning new pieces of knowledge that fit the active leaves in the knowledge tree, you may often hear of the dendritic progression in learning. Human knowledge tends to grow like a tree (see: Tree growth metaphor).

See also: Building knowledge tree in SuperMemo

This glossary entry is used to explain SuperMemo, a pioneer of spaced repetition software since 1987

Knowledge tree in SuperMemo

Figure: Knowledge tree in SuperMemo. "Medical Sciences" branch is a child of "Sciences" branch, and a descendant of "All"