Duolingo Data:
Czech from English 57 units (2023-Sep-10):
NOT CEFR aligned
485 levels ㅤ 2255 lessons ㅤ NO Stories
Path image88 Different Lessons
numberOfSentences=6599 ㅤ wordsLearned=2912 (3196) ㅤ DebugNamesJSON

Units in "Section 4" have personalized names.

Section 1 (Rookie) (8)
Start with essential phrases and simple grammar concepts


1 1 Use basic sentences, introduce people 📝
4, 4, 5, 📪, 4, 5, 5, 📪, 🏆

1 2 Use masculine forms, use feminine forms 📝
4, 4, 4, 📪, 4, 4, 4, 📪, 🏆

1 3 Use neuter forms, describe something 📝
4, 3, 4, 📪, 5, 4, 5, 📪, 3, 5, 🏆

1 4 Describe people, ask questions 📝
6, 📪, 6, 6, 3, 📪, 6, 6, 6, 📪, 🏆

1 5 Use the plural, talk about names 📝
6, 3, 6, 📪, 5, 6, 5, 📪, 3, 5, 🏆

1 6 Use the plural, talk about names 📝
7, 📪, 7, 7, 3, 📪, 7, 7, 7, 📪, 🏆

1 7 Use the plural, talk about names 📝
5, 3, 5, 📪, 5, 5, 5, 📪, 3, 5, 🏆

1 8 Use the plural, talk about names 📝
6, 📪, 6, 5, 3, 📪, 6, 5, 5, 📪, 🏆

Section 2 (Explorer) (20)
Learn words, phrases, and grammar concepts for basic interactions


2 1 / 9 Say whose something is, talk about colors 📝
9, 3, 9, 📪, 4, 9, 4, 📪, 3, 4, 🏆

2 2 / 10 Use the present tense, talk about family 📝
6, 📪, 6, 9, 3, 📪, 6, 9, 9, 📪, 🏆

2 3 / 11 Discuss clothing, use demonstratives 📝
4, 3, 4, 📪, 7, 4, 7, 📪, 3, 7, 🏆

2 4 / 12 Say when and where, use basic numbers 📝
9, 📪, 9, 6, 3, 📪, 9, 6, 6, 📪, 🏆

2 5 / 13 Join simple sentences, use infinitives 📝
4, 3, 4, 📪, 7, 4, 7, 📪, 3, 7, 🏆

2 6 / 14 Describe the household, talk about the past 📝
6, 📪, 6, 9, 3, 📪, 6, 9, 9, 📪, 🏆

2 7 / 15 Say what's happening, use numbers 📝
5, 3, 5, 📪, 6, 5, 6, 📪, 3, 6, 🏆

2 8 / 16 Describe things, name days of the week 📝
7, 📪, 7, 4, 3, 📪, 7, 4, 4, 📪, 🏆

2 9 / 17 Refer to locations, use bigger numbers 📝
7, 3, 7, 📪, 5, 7, 5, 📪, 3, 5, 🏆

2 10 / 18 Discuss the body, name months 📝
6, 📪, 6, 5, 3, 📪, 6, 5, 5, 📪, 🏆

2 11 / 19 Use the locative 📝
9, 3, 9, 📪, 9, 🏆

2 12 / 20 Use ordinal numbers, talk about the past 📝
5, 5, 📪, 3, 6, 5, 📪, 6, 3, 6, 📪, 🏆

2 13 / 21 Use modal verbs, use indefinite words 📝
4, 4, 3, 📪, 4, 4, 4, 📪, 3, 4, 🏆

2 14 / 22 Discuss family, talk about countries 📝
6, 📪, 6, 3, 5, 📪, 6, 5, 3, 📪, 5, 🏆

2 15 / 23 Discuss skills, put events in sequence 📝
5, 5, 📪, 3, 4, 5, 📪, 4, 3, 4, 📪, 🏆

2 16 / 24 Use the instrumental, say what would happen 📝
5, 5, 3, 📪, 5, 5, 5, 📪, 3, 5, 🏆

2 17 / 25 Discuss nationalities, talk about travel 📝
7, 📪, 7, 3, 5, 📪, 7, 5, 3, 📪, 5, 🏆

2 18 / 26 Say who you're with, use modal verbs 📝
8, 8, 📪, 3, 4, 8, 📪, 4, 3, 4, 📪, 🏆

2 19 / 27 Discuss past actions, talk about jobs 📝
6, 6, 3, 📪, 6, 6, 6, 📪, 3, 6, 🏆

2 20 / 28 Say how long ago, talk about nature 📝
4, 📪, 4, 3, 6, 📪, 4, 6, 3, 📪, 6, 🏆

Section 3 (Traveler) (17)
Learn words, phrases, and grammar concepts for basic interactions


3 1 / 29 Say who said what, give instructions 📝
4, 4, 📪, 3, 7, 4, 📪, 7, 3, 7, 📪, 🏆

3 2 / 30 Talk about the future, use the dative 📝
6, 6, 3, 📪, 7, 6, 7, 📪, 3, 7, 🏆

3 3 / 31 Discuss the future, talk about sports 📝
6, 📪, 6, 3, 4, 📪, 6, 4, 3, 📪, 4, 🏆

3 4 / 32 Discuss communication 📝
9, 9, 📪, 3, 9, 🏆

3 5 / 33 Use possessives, use dative prepositions 📝
9, 📪, 9, 3, 6, 📪, 9, 6, 3, 📪, 6, 🏆

3 6 / 34 Discuss politics, use reflexive pronouns 📝
6, 6, 📪, 3, 6, 6, 📪, 6, 3, 6, 📪, 🏆

3 7 / 35 Use relative pronouns, describe feelings 📝
4, 4, 3, 📪, 4, 4, 4, 📪, 3, 4, 🏆

3 8 / 36 Talk about directions, discuss education 📝
6, 📪, 6, 3, 7, 📪, 6, 7, 3, 📪, 7, 🏆

3 9 / 37 Use verbs of motion, discuss transportation 📝
8, 8, 📪, 3, 9, 8, 📪, 9, 3, 9, 📪, 🏆

3 10 / 38 Order at a restaurant, talk about body parts 📝
7, 7, 3, 📪, 5, 7, 5, 📪, 3, 5, 🏆

3 11 / 39 Discuss science, talk about romance 📝
10, 📪, 10, 3, 5, 📪, 10, 5, 3, 📪, 5, 🏆

3 12 / 40 Use passive forms, use dative numbers 📝
4, 4, 📪, 3, 4, 4, 📪, 4, 3, 4, 📪, 🏆

3 13 / 41 Talk about the office, talk about shopping 📝
4, 4, 3, 📪, 4, 4, 4, 📪, 3, 4, 🏆

3 14 / 42 Express your wishes, tackle abstract topics 📝
4, 📪, 4, 3, 4, 📪, 4, 4, 3, 📪, 4, 🏆

3 15 / 43 Say what used to be, discuss arts 📝
4, 4, 📪, 3, 9, 4, 📪, 9, 3, 9, 📪, 🏆

3 16 / 44 Talk about the news, use relative pronouns 📝
4, 4, 3, 📪, 8, 4, 8, 📪, 3, 8, 🏆

3 17 / 45 Talk like the locals, use common proverbs 📝
8, 📪, 8, 3, 5, 📪, 8, 5, 3, 📪, 5, 🏆

Section 4 (Champion / Personalized Practice) (12)
Grow and sustain your Czech with ongoing practice designed for you
(Path Extension Practices)


4 1 to 11 (46 to 56): 5, 5, 5, 5, 5, 5, 5, 🏆
4 12 (57): 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 🏆

ㅤㅤ Trophy

Section 5: Daily Refresh OPTIONAL

5 1, 1, 1, 1, 1, 🏆

Each lesson or 🏆 has challenges, to get the Legendary trophy

Each Unit has Levels and Chests, and each Level has Lessons.
Each Lesson has from 2 to 18 exercises (usually 15)
Each 🏆 has from 2 to 18 exercises (usually 15)
Each Challenge has from 2 to 18 exercises (usually 15)

Edited by Mat!/Ozone, 2024-Apr-28.