Introduction

Cosma / Communication / Knowledge / Form / Introduction ¹
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How to Write an Introduction (Grammarly)

Dictionary

introduction : a preliminary treatise or course of study — Webster

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

Introduction (also known as a prolegomenon) is a beginning section which states the purpose and goals of the following content. The introduction typically describes the scope of the content and gives the brief explanation or summary of it. — Wikipedia

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Preservation

History

Prolegomenon (usually plural prolegomena) is an Ancient Greek word used to mean “prologue” or “introduction”, to introduce a larger work, e.g., a book. — Wikipedia

Origin and meaning of prolegomenon (Online Etymology)
Prolegomenon (World Wide Words)

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

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Participation

Education

Threshold knowledge is a term used to describe core concepts—or threshold concepts—which, once understood, transform perception of a given subject, phenomenon, or experience. The term was Introduced by Jan Meyer and Ray Land. They also discuss the related idea of troublesome knowledge, ideas that appear alien or counter-intuitive. — Wikipedia

Threshold Concepts: Undergraduate Teaching, Postgraduate Training, Professional Development and School Education (Michael Thomas Flanagan, University College London)

Decoding the Disciplines: Improving Student Learning

Jake Shimabukuro Presentation (TEDxTokyo, YouTube)
The Axis of Awesome: 4 Chords (Wikipedia)
4 Chords Music Videos (The Axis Of Awesome, YouTube)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources

Course

Propaedeutics or propedeutics (from Ancient Greek προπαίδευσις, propaídeusis ‘preparatory education’) is a historical term for an introductory course into an art or science. The etymology of propedeutics comprises the Latin prefix pro, meaning earlier, rudimentary, or in front of, and the Greek paideutikós, which means “pertaining to teaching”. As implied by the etymology, propaedeutics may be defined more particularly as the knowledge necessary before, or for the learning of, a discipline, but not which is sufficient for proficiency. — Wikipedia

Teaching Introductory Courses: What Is the Public Face of Your Field? (Maryellen Weimer, Faculty Focus)
What are Gateway Courses and Why Do They Matter to Equity in Higher Ed? (Jessie Kwak, Every Learner Every Where)

It Matters a Lot Who Teaches Introductory Courses. Here’s Why (Beckie Supiano, Chronicle of Higher Education)
Fixing the Courses Everyone Loves to Hate (Beth McMurtrie, Chronicle of Higher Education)