Professor Citachka · Department
Catholic Theology
A clear route, built for real understanding
Your guided study path
Move through sections → levels → units → lessons. Each lesson is deliberately longer than a drill: it explains the idea, works through an example, gives you optional retrieval practice, and then saves your reading. Unit quizzes and level assessments come after the teaching—not every two minutes, because we are building knowledge, not training a very anxious button-pusher.
Your progress path
Units, one crown at a time
Each unit is five lessons. Read every lesson in a unit and it earns a crown. The next unit opens when you reach it, so the path always shows exactly where you are.
- —day streak
- —of 14 unit crowns
- —of 70 lessons read
- —today’s goal: one lesson
You are hereUnit 1: Sources, interpretation and reasonContinue this unit
Section 1Sources and foundational concepts
Locked
Unit 2: Creation, dignity, grace and doctrinal reading0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Section 2Doctrine and ethical interpretation
Locked
Unit 3: Trinity, incarnation and ecclesial life0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Locked
Unit 4: Conscience, virtue and charitable dialogue0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Section 3Reading Catholic Sources: Revelation, Worship, and Public Responsibility
Locked
Unit 5: Revelation and the Discipline of Interpretation0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Locked
Unit 6: Sacramental Participation and Responsibility toward Others0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Section 4Dogma, Grace, and the Moral Life: Defining, Reading, and Living the Faith
Locked
Unit 7: How Doctrine Is Defined, Read, and Received0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Locked
Unit 8: Grace, Sacraments, and the Formed Conscience0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Section 5Prayer, Worship, and the Church in a Contested World
Locked
Unit 9: The Life of Prayer and the Liturgy That Feeds It0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Locked
Unit 10: Conscience, Communion, and the Questions That Are Not Settled0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Section 6Vocation, Moral Method, and the Judgements the Church Leaves Open
Locked
Unit 11: Vocation and the States of Life: Work, Marriage, Consecrated Life and Creation0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Locked
Unit 12: Moral Method and the Contested Cases: From the Object of the Act to a Prudential Judgement0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Section 7Scripture Scholarship, Doctrine in Development, and Accountability: What the Church Defines, Permits, and Leaves Open
Locked
Unit 13: Inspiration, Criticism, Development and Councils: How the Church Reads Scripture and Her Own Doctrine0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
Locked
Unit 14: Healing, Devotion, Politics and Accountability: Where Doctrine Ends and Judgement Begins0 of 5 lessons read
Finish Unit 1: Sources, interpretation and reason to open this unit.
A fresh start · one small lesson is enough.
0 study interactions · 0 distinct days · 0-day streak · 0/7 recent days
0 / 21 assessments passed · reading is not assessed proficiency.
Continue Theology: Kinds of theological claimsLevel 1 · Topic 1 of 10 · Your next unfinished lesson
Expanded instructional sections: 50 / 70 published course lessons. Original explanations elsewhere remain available but are not counted as expanded. Earlier assessment banks reuse lesson questions; appended course levels have separately authored application questions and longer cumulative tests. Extended lessons and book guides retain separate reading sequences; their own multi-unit assessment maps are not yet authored.
Published now: 14 of 100 requested core units. These are grouped into 7 published core levels, not the full requested curriculum or a professional qualification. The remaining units are not published, not hidden behind a paywall or presented as completed work.
Section 1 · FoundationSources and foundational concepts0/10 lessons read · 2 units
Level 1 · Unit 1
Sources, interpretation and reason
Unit guidebook
Before you begin, this unit teaches Kinds of theological claims, Scripture and genre, Tradition and transmission, Reason and faith, Classical theism. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Kinds of theological claimsStart lesson →Lesson 2
Scripture and genreSave the previous lesson to continueLesson 3
Tradition and transmissionSave the previous lesson to continueLesson 4
Reason and faithSave the previous lesson to continueLesson 5
Classical theismSave the previous lesson to continue
Level 1 · Unit 2
Creation, dignity, grace and doctrinal reading
Unit guidebook
Before you begin, this unit teaches Creation and dependence, Human dignity, Sin and responsibility, Grace and response, Reading a doctrinal source. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Creation and dependenceSave the previous lesson to continueLesson 2
Human dignitySave the previous lesson to continueLesson 3
Sin and responsibilitySave the previous lesson to continueLesson 4
Grace and responseSave the previous lesson to continueLesson 5
Reading a doctrinal sourceSave the previous lesson to continue
Level 1 assessment
10 questions · Not assessed
Section 2 · DevelopmentDoctrine and ethical interpretation0/10 lessons read · 2 units
Level 2 · Unit 1
Trinity, incarnation and ecclesial life
Unit guidebook
Before you begin, this unit teaches Trinity without tritheism, Incarnation and natures, Salvation and models, Church and institution, Sacrament and sign. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Trinity without tritheismSave the previous lesson to continueLesson 2
Incarnation and naturesSave the previous lesson to continueLesson 3
Salvation and modelsSave the previous lesson to continueLesson 4
Church and institutionSave the previous lesson to continueLesson 5
Sacrament and signSave the previous lesson to continue
Level 2 · Unit 2
Conscience, virtue and charitable dialogue
Unit guidebook
Before you begin, this unit teaches Conscience and formation, Virtue and habit, Catholic social reasoning, Councils and development, Charitable disagreement. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Conscience and formationSave the previous lesson to continueLesson 2
Virtue and habitSave the previous lesson to continueLesson 3
Catholic social reasoningSave the previous lesson to continueLesson 4
Councils and developmentSave the previous lesson to continueLesson 5
Charitable disagreementSave the previous lesson to continue
Level 2 assessment
10 questions · Not assessed
Section 3 · IntegrationReading Catholic Sources: Revelation, Worship, and Public Responsibility0/10 lessons read · 2 units
Level 3 · Unit 1
Revelation and the Discipline of Interpretation
Unit guidebook
Before you begin, this unit teaches Inspiration, human authorship, and what a text asserts, Canon, Tradition, and the teaching office as distinct relations, Infallibility, religious assent, and the scope of a teaching act, Typology without erasing Israel or the literal sense, Doctrinal development and the burden of showing continuity. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Inspiration, human authorship, and what a text assertsSave the previous lesson to continueLesson 2
Canon, Tradition, and the teaching office as distinct relationsSave the previous lesson to continueLesson 3
Infallibility, religious assent, and the scope of a teaching actSave the previous lesson to continueLesson 4
Typology without erasing Israel or the literal senseSave the previous lesson to continueLesson 5
Doctrinal development and the burden of showing continuitySave the previous lesson to continue
Level 3 · Unit 2
Sacramental Participation and Responsibility toward Others
Unit guidebook
Before you begin, this unit teaches Baptismal participation: gift, identity, and moral response, The Eucharist, memorial, and the divided Corinthian meal, Active participation, liturgical signs, and accessible worship, Catholic interpretation after Nostra Aetate: Jewish relations and collective blame, Religious freedom: truth, conscience, and the limits of coercion. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Baptismal participation: gift, identity, and moral responseSave the previous lesson to continueLesson 2
The Eucharist, memorial, and the divided Corinthian mealSave the previous lesson to continueLesson 3
Active participation, liturgical signs, and accessible worshipSave the previous lesson to continueLesson 4
Catholic interpretation after Nostra Aetate: Jewish relations and collective blameSave the previous lesson to continueLesson 5
Religious freedom: truth, conscience, and the limits of coercionSave the previous lesson to continue
Level 3 assessment
12 questions · Not assessed
Section 4 · IntegrationDogma, Grace, and the Moral Life: Defining, Reading, and Living the Faith0/10 lessons read · 2 units
Level 4 · Unit 1
How Doctrine Is Defined, Read, and Received
Unit guidebook
Before you begin, this unit teaches Dogma, definitive teaching, and the response each claim asks for, Development of doctrine: tests, not slogans, Scripture and Tradition in Catholic reading, Reading a Church document accurately: speaker, act, addressee, claim, Defined dogma in practice: the Immaculate Conception and the Assumption. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Dogma, definitive teaching, and the response each claim asks forSave the previous lesson to continueLesson 2
Development of doctrine: tests, not slogansSave the previous lesson to continueLesson 3
Scripture and Tradition in Catholic readingSave the previous lesson to continueLesson 4
Reading a Church document accurately: speaker, act, addressee, claimSave the previous lesson to continueLesson 5
Defined dogma in practice: the Immaculate Conception and the AssumptionSave the previous lesson to continue
Level 4 · Unit 2
Grace, Sacraments, and the Formed Conscience
Unit guidebook
Before you begin, this unit teaches Grace and justification: Trent, the Reformation, and the current state of the dispute, The sacraments of initiation: Baptism, Confirmation, and the Eucharist, Penance, anointing, and the shape of conversion, Conscience and moral reasoning: judgment, formation, and the moral act, The communion of saints: Mary, the saints, and what devotion does and does not claim. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Grace and justification: Trent, the Reformation, and the current state of the disputeSave the previous lesson to continueLesson 2
The sacraments of initiation: Baptism, Confirmation, and the EucharistSave the previous lesson to continueLesson 3
Penance, anointing, and the shape of conversionSave the previous lesson to continueLesson 4
Conscience and moral reasoning: judgment, formation, and the moral actSave the previous lesson to continueLesson 5
The communion of saints: Mary, the saints, and what devotion does and does not claimSave the previous lesson to continue
Level 4 assessment
12 questions · Not assessed
Section 5 · IntegrationPrayer, Worship, and the Church in a Contested World0/10 lessons read · 2 units
Level 5 · Unit 1
The Life of Prayer and the Liturgy That Feeds It
Unit guidebook
Before you begin, this unit teaches Prayer as grace and as battle: what the Church claims and what it does not, The senses of Scripture, and how to detect a proof-text, The liturgy as source and summit: what liturgical reform can and cannot change, The Eucharist in doctrine and history: presence, sacrifice, and the disputes around them, Catholic social teaching: four principles and the policy questions they do not settle. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Prayer as grace and as battle: what the Church claims and what it does notSave the previous lesson to continueLesson 2
The senses of Scripture, and how to detect a proof-textSave the previous lesson to continueLesson 3
The liturgy as source and summit: what liturgical reform can and cannot changeSave the previous lesson to continueLesson 4
The Eucharist in doctrine and history: presence, sacrifice, and the disputes around themSave the previous lesson to continueLesson 5
Catholic social teaching: four principles and the policy questions they do not settleSave the previous lesson to continue
Level 5 · Unit 2
Conscience, Communion, and the Questions That Are Not Settled
Unit guidebook
Before you begin, this unit teaches Formed conscience and public dissent: what may be argued, and how, Ecumenism: unity as communion, not absorption, Interreligious dialogue: what it is, what it is not, and what remains open, The problem of suffering: the range of legitimate Catholic responses, Science, faith, and how to read a question the Church has not settled. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Formed conscience and public dissent: what may be argued, and howSave the previous lesson to continueLesson 2
Ecumenism: unity as communion, not absorptionSave the previous lesson to continueLesson 3
Interreligious dialogue: what it is, what it is not, and what remains openSave the previous lesson to continueLesson 4
The problem of suffering: the range of legitimate Catholic responsesSave the previous lesson to continueLesson 5
Science, faith, and how to read a question the Church has not settledSave the previous lesson to continue
Level 5 assessment
12 questions · Not assessed
Section 6 · IntegrationVocation, Moral Method, and the Judgements the Church Leaves Open0/10 lessons read · 2 units
Level 6 · Unit 1
Vocation and the States of Life: Work, Marriage, Consecrated Life and Creation
Unit guidebook
Before you begin, this unit teaches Work as vocation: why the Church treats ordinary labour as a calling, Marriage as covenant: what the Church defines, what she argues, and what is disputed, The theology of the body: catechesis, magisterium, and a reception in dispute, Virginity, celibacy and the states of life: telling doctrine from discipline, Creation care: the human vocation inside a created order that belongs to God. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Work as vocation: why the Church treats ordinary labour as a callingSave the previous lesson to continueLesson 2
Marriage as covenant: what the Church defines, what she argues, and what is disputedSave the previous lesson to continueLesson 3
The theology of the body: catechesis, magisterium, and a reception in disputeSave the previous lesson to continueLesson 4
Virginity, celibacy and the states of life: telling doctrine from disciplineSave the previous lesson to continueLesson 5
Creation care: the human vocation inside a created order that belongs to GodSave the previous lesson to continue
Level 6 · Unit 2
Moral Method and the Contested Cases: From the Object of the Act to a Prudential Judgement
Unit guidebook
Before you begin, this unit teaches Object, intention and circumstance: why consequences alone cannot settle a case, Natural law: how the argument actually runs, and how it is actually attacked, Virtue and habit: how character shapes what a person can see and do, Medical ethics at the beginning and end of life: where doctrine stops and judgement begins, Capstone: weighing a contested prudential judgement, using migration policy as the case. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Object, intention and circumstance: why consequences alone cannot settle a caseSave the previous lesson to continueLesson 2
Natural law: how the argument actually runs, and how it is actually attackedSave the previous lesson to continueLesson 3
Virtue and habit: how character shapes what a person can see and doSave the previous lesson to continueLesson 4
Medical ethics at the beginning and end of life: where doctrine stops and judgement beginsSave the previous lesson to continueLesson 5
Capstone: weighing a contested prudential judgement, using migration policy as the caseSave the previous lesson to continue
Level 6 assessment
12 questions · Not assessed
Section 7 · IntegrationScripture Scholarship, Doctrine in Development, and Accountability: What the Church Defines, Permits, and Leaves Open0/10 lessons read · 2 units
Level 7 · Unit 1
Inspiration, Criticism, Development and Councils: How the Church Reads Scripture and Her Own Doctrine
Unit guidebook
Before you begin, this unit teaches Inspiration and inerrancy: what the Church defines, and what the argument over 'without error' actually covers, Historical criticism and the Catholic exegete: what Rome permits, requires and rules out, The development of doctrine: what development can and cannot mean, How a council works: Nicaea to Vatican II as historical events, and where conciliar authority rests, Other religions after Vatican II: what Nostra Aetate teaches, what Dominus Iesus adds, and where Catholics still disagree. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
Inspiration and inerrancy: what the Church defines, and what the argument over 'without error' actually coversSave the previous lesson to continueLesson 2
Historical criticism and the Catholic exegete: what Rome permits, requires and rules outSave the previous lesson to continueLesson 3
The development of doctrine: what development can and cannot meanSave the previous lesson to continueLesson 4
How a council works: Nicaea to Vatican II as historical events, and where conciliar authority restsSave the previous lesson to continueLesson 5
Other religions after Vatican II: what Nostra Aetate teaches, what Dominus Iesus adds, and where Catholics still disagreeSave the previous lesson to continue
Level 7 · Unit 2
Healing, Devotion, Politics and Accountability: Where Doctrine Ends and Judgement Begins
Unit guidebook
Before you begin, this unit teaches The sacraments of healing: penance and the anointing of the sick, The communion of saints, purgatory, and praying for the dead, Mary and the saints: what is defined, what is devotion, what is disputed, The Church and political life: what binds, what is prudential, what is disputed, Scandal and sin in the Church: the record, accountability, and reading a contested document. The lessons introduce ideas in order, then the unit quiz asks you to retrieve and apply them. You may revisit completed lessons whenever you wish.
Lesson 1
The sacraments of healing: penance and the anointing of the sickSave the previous lesson to continueLesson 2
The communion of saints, purgatory, and praying for the deadSave the previous lesson to continueLesson 3
Mary and the saints: what is defined, what is devotion, what is disputedSave the previous lesson to continueLesson 4
The Church and political life: what binds, what is prudential, what is disputedSave the previous lesson to continueLesson 5
Scandal and sin in the Church: the record, accountability, and reading a contested documentSave the previous lesson to continue
Level 7 assessment
Progress stays in this browser, on this device—not an account or cloud backup. Clearing browser data removes it. Visits never count as study. Previous untimed legacy completions are not invented as study days.
A staged introduction to Catholic doctrine, Scripture, Church history, and philosophical theology.
Faith seeks understanding; disciplined inquiry need not be the enemy of reverence.
Your pathway
Study Map
Each lesson names whether it is presenting Catholic doctrine, historical context, or philosophical reasoning—and invites careful retrieval rather than rote agreement.
- 01
How Theology Reasons
Revelation, Scripture, Tradition, reason, and careful use of sources.
- 02
God, Creation, and the Human Person
Classical theism, creation, freedom, sin, and grace.
- 03
Christ and Salvation
The Incarnation, redemption, discipleship, and hope.
- 04
Church, Sacraments, and Moral Life
The Church, the sacraments, conscience, virtue, and social teaching.
- 05
History, Philosophy, and Questions
Councils, major thinkers, apologetics, and charitable engagement with objections.
Beyond the foundation
Your expanding curriculum
This department does not stop at beginner level. Each stage adds complexity, independence, and real-world application.
- Level 1Foundation: sources, doctrine, and theological reasoning
- Level 2Core: Scripture, sacraments, Christology, and moral life
- Level 3Intermediate: history, councils, and philosophical theology
- Level 4Advanced: primary texts, apologetics, and contested questions
- Level 5Independent mastery: charitable, rigorous theological synthesis