Streaks
- gainedXp (number): Total XP earned on the calendar day.
- frozen (boolean): Whether a Streak Freeze protected the streak on that day (i.e., no qualifying activity but streak not lost).
- streakExtended (boolean): Whether this day counted toward maintaining/extending the streak.
- date (number): Unix epoch seconds at day boundary (UTC). Consecutive entries typically differ by 86,400 seconds.
- userId (number): Duolingo user identifier.
- repaired (boolean): Whether the streak was later repaired for this day (e.g., post hoc repair product).
- dailyGoalXp (number): XP threshold required to meet the daily goal on that day.
- numSessions (number): Count of learning sessions completed.
- totalSessionTime (number): Sum of session durations in seconds for the day.
Containers
- course/section/unit/lesson/lexeme
- 30 lexemes per unit
- 60 lexemes per 1 duolingo score
- 3.5 lexemes per word
- 15 exercises in each lesson
- each unit have 24 lessons
Time Cost
- 60 minutes per unit
- each exercises takes 10 seconds to solve
- each lesson takes 2.5 minutes to solve
- each lexeme costs 2 minutes to retain
- 5 minutes per lexeme for total learning time.
| CEFR, Sec, Lex | total | 3m/d (1Ls) | 15m/d (6Ls) | 10h/w (1u) | 50h/w (7u) |
|---|
| A1, 3, 1600 | 55h | 3 years | 7 months | 1.5 months | 1 week |
| A2, 4, 3200 | 105h | 6 years | 14 months | 2.5 months | 2 weeks |
| B1, 6, 6400 | 205h | 11 years | 2.5 years | 5 months | 1 month |
| B2, 8, 8500 | 275h | 15 years | 3 years | 6 months | 1.5 months |
Spanish from EN
units_in_each_section = [8,26,28,52,50,50,36,36]
| Section | Units | Lexemes | Duo / CEFR | Cost |
|---|
| Section 1 | 8 | 240 / 240 | 10 (A1) | 8h |
| Section 2 | 26 | 780 / 1020 | 20 (A1) | 34h |
| Section 3 | 28 | 840 / 1860 | 30 (A1) | 62h / 100h |
| Section 4 | 52 | 1560 / 3420 | 60 (A2) | 114h / 200h |
| Section 5 | 50 | 1500 / 4920 | 80 (B1) | 164h |
| Section 6 | 50 | 1500 / 6420 | 100 (B1) | 214h / 400h |
| Section 7 | 36 | 1080 / 7500 | 115 (B2) | 250h |
| Section 8 | 36 | 1080 / 8580 | 130 (B2) | 286h / 600h |
French from EN
units_in_each_section = [10,22,21,46,51,49,36,37]
| Section | Units | Lexemes | Duo / CEFR | Cost |
|---|
| Section 1 | 10 | 300 / 300 | 10 (A1) | 10h |
| Section 2 | 22 | 760 / 960 | 20 (A1) | 32h |
| Section 3 | 21 | 840 / 1590 | 30 (A1) | 53h / 100h |
| Section 4 | 46 | 1560 / 2970 | 60 (A2) | 99h / 200h |
| Section 5 | 51 | 1500 / 4500 | 80 (B1) | 150h |
| Section 6 | 49 | 1500 / 5970 | 100 (B1) | 199h / 400h |
| Section 7 | 36 | 1080 / 7050 | 115 (B2) | 235h |
| Section 8 | 37 | 1080 / 8160 | 130 (B2) | 272h / 600h |
English from ES
units_in_each_section = [10,26,20,48,50,52,36,36]
| Section | Units | Lexemes | Duo / CEFR | Cost |
|---|
| Section 1 | 10 | 300 / 300 | 10 (A1) | 10h |
| Section 2 | 22 | 780 / 1080 | 20 (A1) | 36h |
| Section 3 | 21 | 600 / 1680 | 30 (A1) | 56h / 100h |
| Section 4 | 46 | 1440 / 3120 | 60 (A2) | 104h / 200h |
| Section 5 | 51 | 1500 / 4620 | 80 (B1) | 154h |
| Section 6 | 49 | 1560 / 6180 | 100 (B1) | 206h / 400h |
| Section 7 | 36 | 1080 / 7260 | 115 (B2) | 242h |
| Section 8 | 37 | 1080 / 8340 | 130 (B2) | 278h / 600h |
Improvement
- 15 lexemes 30 minutes 15 lessons per unit (4443)
- 10 units 5 scores 5 hours per section
- 5 sections 25 hours 1500 lexemes per level or course
- 5 courses to reach CEFR B2
- each hour of learning, you may expose to 15-20 valuable lexemes
- each week in university, you learn 50-65 lexemes
- each semester in university, you learn 800-1000 lexemes
- score 300 to reach A2, 6 lexemes per score, 1800 lexemes
- score 600 to reach B1, 6 lexemes per score, 3600 lexemes
- score 900 to reach B2, 8 lexemes per score, 6000 lexemes
- score 1200 to reach C1, 8 lexemes per score, 8400 lexemes
- score 1500 to reach C2, 10 lexemes per score, 11400 lexemes
