Insights
95% vs 98% Reading Coverage: Pick Texts Without Guessing
Understand 95% and 98% known-word coverage: one unknown word in 20 vs one in 50, and how to choose texts for reading practice.
Can You Learn a Language Only by Reading?
Reading builds comprehension and vocabulary. Add narrator audio, shadowing, and retelling to turn understanding into listening and speaking practice.
Am I Too Old to Learn a Language? The Research Says No
Am I too old to learn a language? Research debunks the critical period myth. Adults have real advantages, and neuroplasticity supports lifelong language learning.
Comprehensible Input vs Grammar Study: Which Works Better?
Comprehensible input vs grammar study without false either-or claims. Compare reading/input, grammar, output, and feedback by skill, level, and goal.
Krashen's Input Hypothesis: i+1 and Comprehensible Input
A practical guide to Krashen's Input Hypothesis, i+1, comprehensible input, reading, listening, grammar, output, and feedback.
Natural Order Hypothesis: Why Grammar Rules Don't Stick on Schedule
A plain-English guide to the Natural Order Hypothesis, morpheme studies, teachability, and why meaningful input matters more than forced grammar sequence.
Extensive Reading for Language Learning: Easy Texts, Real Progress
Use extensive reading to learn a language with easy texts, 95-98% known words, graded readers, and a repeatable weekly reading volume.
How Spaced Repetition Works for Language Learning
Spaced repetition helps vocabulary retention, but it works best with meaningful reading. Learn what to save, review, reread, and skip.
Learn a Language by Reading: What Works and What Does Not
A practical, evidence-aware guide to learning a language through reading: text difficulty, 95–98% coverage, vocabulary growth, and what reading cannot replace.
TortoLingua app
Read in the browser or install the mobile app.
The app page links to the web app and the official iOS App Store listing. Android is coming soon.