What is spaced repetition and does it help with learning Spanish?

Spaced repetition is a study method where you review something at increasing intervals, right around the time you'd forget it. For Spanish, it helps a lot with vocabulary and phrases, because it lets you remember many more words with much less review time than cramming.

The idea in plain terms

You forget new things quickly. This is the forgetting curve, described over a century ago: memory drops fast at first, then levels off. Each time you recall something successfully, the drop gets slower.

Spaced repetition uses that. You see a new word today, then again tomorrow, then in three days, then a week, then a month, and so on. If you get it right, the gap grows. If you get it wrong, the word comes back sooner.

The result is that you spend your review time on the things you're about to forget, not on the things you already know.

How it looks in practice

Most spaced repetition happens through flashcard-style software. You see a prompt, try to recall the answer, then rate how easy it was. The program schedules the next review.

Anki is the best-known tool and it's very flexible, though it takes some setup. Many language apps build a simpler version in, so you review saved words in a short quiz without managing a schedule. Langtok, my app, works like that: you save words while reading a story and practice them in quizzes later.

Does it work for Spanish?

Yes, and it's especially good for:

• Vocabulary. The clearest win. Learn a few new words a day and they stay.
• Set phrases and chunks. Tengo ganas de (I feel like) or a lo mejor (maybe) are better learned whole.
• Gendered nouns. Review la mano and el mapa with the article attached - see gendered nouns.
• Verb forms. Useful for fixing the ones that keep slipping, though memorizing conjugations works best with context too.

What it doesn't do

I want to be fair about limits. Spaced repetition won't teach you to understand fast speech or hold a conversation. It keeps knowledge in your memory, but you still have to use that knowledge in real situations.

It's also easy to overdo. Adding too many new cards creates a pile of reviews that grows faster than you can clear. When that happens, people quit. A good rule is to keep new cards modest, around 10 to 20 a day, and never skip reviews for long.

Getting the best from it

1. Use sentences, not just words. Context makes cards easier to remember. See words from context or lists.
2. Review daily. Ten minutes a day works better than an hour once a week.
3. Add words from your own listening and reading. They'll mean more to you.
4. Be honest when you rate yourself. If you fudge it, the schedule stops working.

Do you need special software?

Not really. A paper box of cards where you move correct ones to a less frequent slot is the original version of this idea. Apps just do the scheduling for you.

My take is that spaced repetition is one of the few study techniques with solid research behind it, and it's worth ten minutes of your day. Use it for words, and spend the rest of your time on real Spanish.