Why You Forget French Words (and How Spaced Repetition Helps You Remember Them)
You learn a French word, then forget it days later. That's the forgetting curve — here's how spaced repetition and Français Flow help words actually stick.
You learn a new French word, write it down, and feel confident you know it—until you see it days later and draw a complete blank. If this happens to you, you aren't doing anything wrong; this is simply how human memory works. The real challenge of language learning isn't just acquiring new , but keeping them in your memory long enough to actually use them in conversation.
The forgetting curve: why memories fade
In the late 19th century, German psychologist Hermann Ebbinghaus discovered that memories weaken over time, especially immediately after learning something new[1]. This pattern became known as the forgetting curve.
Fortunately, forgetting isn't permanent. Every time you successfully recall information, you strengthen that neural pathway, pushing the next "forgetting" moment further into the future. This is the core idea behind spaced repetition: instead of reviewing a word ten times in one , you review it at carefully expanding intervals—exactly when your brain needs a reminder.
Why reading your vocabulary notebook is not enough
A vocabulary is a great place to collect words, but a terrible primary learning method. When you read a list and think, "Yes, I know this one," your brain is merely recognizing the answer. Recognition is incredibly easy, but in a real French conversation, you don't get to see the word first—you have to pull it out of thin air.
Spaced repetition works because it trains this exact skill. Research in cognitive psychology[2] has repeatedly shown that long-term retention relies on two highly effective techniques:
- Retrieval practice — actively recalling information from scratch instead of passively re-reading it.
- Spaced practice — spreading learning sessions over time instead of cramming.
Seeing the answer and thinking "yes, I know that." Easy — and misleading.
Retrieving the word with no prompt. Harder — and exactly what conversations demand.
How spaced repetition works
Imagine you learn the French word réussir (to succeed). At first, the memory is fragile. You review it the next day and remember it. Then you review it again after three days, then a week, then a month. Each successful recall strengthens the connection, keeping the word accessible for longer periods.
If you do happen to forget the word, that's useful data too. The system knows this memory needs more practice and brings it back sooner. The goal isn't to review every word equally; the goal is to spend your time where it matters most.
Why software makes spaced repetition easier
While you can use paper flashcards for spaced repetition, managing the schedule for hundreds of words quickly becomes impossible. You have to constantly ask yourself: Which words should I review today? Which can wait?
This is where software helps. Français Flow uses a modern spaced repetition algorithm to automatically organize your reviews behind a beautifully simple interface.
During a review, you only answer one question: Did you know this word?
« Je vais réussir mon examen. »
You don't need to agonize over whether a word was "," "hard," or "almost forgotten." The app analyzes your answer alongside your response time and learning history to estimate how well the word is stored in your memory. Difficult words come back sooner, while words you know well gradually fade into the background. You spend less time managing the process and more time actually learning French.
Learning vocabulary without the mental overload
One of the biggest problems with traditional vocabulary study isn't just forgetting words—it's decision fatigue. Spaced repetition removes the guesswork. Instead of reviewing hundreds of words randomly, you focus only on the exact words that need your attention today.
A few minutes of focused practice every day builds a vocabulary that stays with you for years. Learning French isn't about having a perfect memory; it's about giving your the right reminder at the right time.
And spaced repetition helps you do exactly that.
Did it stick?
Three quick questions — no pressure.
1What does the "forgetting curve" demonstrate?
2Why is just reading your vocabulary notebook an ineffective way to study?
3How does Français Flow decide when you should review a word next?
Sources
- [1] Murre, J. M. J., & Dros, J. (2015). Replication and Analysis of Ebbinghaus' Forgetting Curve. PLOS ONE.
- [2] Roediger, H. L., & Butler, A. C. (2011). The critical role of retrieval practice in long-term retention. Trends in Cognitive Sciences.