Idaho Social Studies 9-12.WC.15

Social StudiesGrades 9–12Foundations of Western Civilization

The Standard

Analyze the causes and consequences of Diocletian’s reforms and Constantine the Great's establishment of "New Rome" (Constantinople) and the recognition of Christianity as a legal religion.

Idaho Content Standards: K-12 Social Studies · Ancient Rome (c. 500 BC – 500 AD)

Teacher's field guide

What This Standard Means

What Students Need to Do

Students explain how civil wars, border attacks, and money problems led Diocletian to change Roman government and taxation. They trace how a new eastern capital and legal Christian worship changed the empire.

What Mastery Looks Like

A student can link succession wars to Diocletian's four-ruler system and explain why his larger government needed more tax revenue. They can use a map to explain Constantinople's location and how it shifted power east. They can distinguish legal Christian worship from Christianity becoming the state religion.

Common Misconceptions

Students may think Diocletian created two permanent empires, rather than a system of four rulers for one empire. They may confuse his persecution of Christians with Constantine and Licinius allowing Christian worship. Some think Constantine made Christianity the state religion, which happened later.

How to Assess It

Exit ticket: Name one problem Diocletian faced and a reform that addressed it. Then explain one consequence each of Constantinople and legal Christian worship.

Lesson moves

Ways to Teach It

  1. Place four counters on a Roman Empire map for Diocletian's rulers, then draw arrows toward borders each ruler could defend.

  2. Write three sentences answering: Why might an emperor choose the Bosporus for a new capital instead of staying in Rome?

  3. Match cards labeled succession wars, four rulers, border attacks, eastern capital, Bosporus trade, and Constantinople; explain each cause-and-response pair.

  4. Compare Constantinople's strait with Brasília's inland site on a map; write one reason each location served its government's goals.

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