Instructive experience

Wikipedia Word definitions in Wikipedia
An object lesson is a teaching method that consists of using a physical object or visual aid as a discussion piece for a lesson.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Object \Ob"ject\ ([o^]b"j[e^]kt), n. [L. objectus. See Object , v. t.] That which is put, or which may be regarded as put, in the way of some of the senses; something visible or tangible and persists for an appreciable time; as, he observed an object in ...

WordNet Word definitions in WordNet
n. punishment intended as a warning to others; "they decided to make an example of him" [syn: example , deterrent example , lesson ]

Wiktionary Word definitions in Wiktionary
n. 1 A lesson taught (especially to young children) using a familiar or unusual object as a focus. 2 An example from real life that typify/explains a principle or teaches a lesson. 3 Anything used as an example or lesson which serves to warn others as to ...