| Field | Grammar |
| Went Obsolete | Not necessarily obsolete; more that the method/reason for teaching this way lost steam, approximately 20 - 25 years ago |
| Made Obsolete By | Common sense |
| Knowledge Assumed | Expert understanding of parts of speech |
| When useful | When arguing with English majors |
Diagramming sentences is a way of mapping out parts of a sentence, providing a means of learning for people who are visual learners.
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