If you cannot find a new node's immediate prerequisite on 1Cademy, find the closest available ancestor prerequisite within the topic. Then, bridge the knowledge gap by proposing the missing intermediate prerequisite nodes as children of the ancestor and parents of your intended new node.

Proposing Missing Intermediate Prerequisites

A node is an ancestor of another node when it contains indirect prerequisite information that a user must understand to learn the current node. For example, if node A is a parent of node B, and node B is a parent of node C, then node A is an ancestor of node C. Any parents or ancestors of node A are also ancestors of node C.

San Jose State University

University of Michigan - Ann Arbor

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- Parent
- Child
- Ancestor
- Descendant
- Sibling

Types of Relationships Between Nodes in 1Cademy Knowledge Graph

A node is a parent of another node when it contains direct (immediate) prerequisite information that a user should understand to be able to learn the following node. A node can have multiple parents and can be a parent to multiple nodes. 

Parents of a Node on 1Cademy

A node is a descendant of another node if the latter node contains indirect prerequisite information that is necessary for learning the content of the current node. For example, if node A is a child of node B and node B is a child of node C, then node A is a descendant of node C. Any children or descendants of node A are also descendants of node C.

Descendants of a Node on 1Cademy

A node is a sibling of another node when the two nodes share a parent node. A node can have multiple siblings. 

Siblings of a Node on 1Cademy

Ancestors of a Node on 1Cademy

A node is a child of another node when the latter (its parent) contains direct prerequisite information that a user must understand to be able to learn the child node. A node can have multiple child nodes and can be a child to multiple nodes.

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