As the owner of Bart de Pau Language Courses, I have spent many years thinking about one central question: what kind of course structure actually leads to the fastest and most effective language learning?

Over time, both research in second language acquisition and my own experience running language schools have led me to the same conclusion: intensive language courses are often significantly more effective than courses that meet only once per week.

Interestingly, I first discovered this not in academic journals, but through my own language school experience.

What I learned from running intensive and weekly courses

Before founding Bart de Pau Language Courses, I ran a language school in St. Petersburg which specialised in Russian language courses for Dutch people.

We offered a course package of 40 hours of instruction, which students could follow in two formats:
– a course with one 2-hour class per week during 20 weeks
– an intensive 2-week course: 10 days of class with 4 hours per day

Over time, a striking pattern emerged. In the intensive courses, we consistently finished the entire textbook. In the once-a-week courses, we typically managed to cover only about half of the same material — despite having exactly the same number of total lesson hours.

This happened again and again, across many participants and different teachers. At the time, this surprised me. After all, the total number of teaching hours was identical. Yet the results were clearly different.

Later, when I started reading research on second language acquisition, I realised that what we had observed in practice closely matched what scientists had been finding in controlled studies.

Research shows intensive learning can produce faster progress

One of the best-known studies on this topic compared language courses with the same total number of instructional hours but different time distributions. In this study, one group received 110 hours of English instruction in an intensive five-week course, while another group received the same number of hours spread over several months.

The results showed that the intensive learners achieved significantly greater improvements in language proficiency (Serrano & Muñoz, 2007).

Similarly, research by Collins, Halter, Lightbown, and Spada (1999) demonstrated that the distribution of learning time strongly affects language acquisition outcomes. Concentrating instructional hours within shorter periods can lead to more efficient learning because students maintain momentum and retain material more effectively.

These findings helped explain what we had already observed in our own classrooms.

Why intensive courses often work better

Based on years of teaching experience and discussions with my teachers, several factors consistently explained why our intensive students progressed faster.

1. Focus and mental availability

Students in intensive courses typically block off a dedicated period in their lives specifically to learn the language. During that time, the language becomes their main focus, rather than something squeezed in after a long workday.

In weekly evening classes, students often arrive tired after work and may struggle to maintain full concentration. Intensive learners, by contrast, tend to be mentally more available for the learning process.

2. Less time lost to repetition

When lessons are spaced far apart, teachers inevitably need to spend a considerable amount of time reviewing material from previous weeks. In weekly courses, a significant portion of lesson time can be used for necessary repetition and reactivation of earlier material.

In intensive courses, lessons follow each other much more closely, allowing teachers to build on previous material more directly. This makes it easier to maintain learning momentum and progress more quickly through the course material.

Research on language exposure supports this observation: regular and frequent exposure to the target language is considered a key factor in successful language acquisition (Lightbown & Spada, 2013).

3. Higher discipline and homework completion

Another difference we observed was related to student behaviour.

Students in intensive programs typically set aside a clearly defined period for learning. As a result, they tend to approach the course with greater discipline.

They are more likely to:
– complete all homework assignments
– prepare thoroughly for each lesson
– attend every class session

In weekly courses, the situation is different. Life easily gets in the way: work obligations, social activities, or unexpected events.

Over time, we noticed that missed homework and skipped classes occurred about five times more often in weekly courses than in intensive programs.

4. The group dynamic factor

In group courses, individual discipline affects not only the learner but also the entire class. Even if a motivated student completes all assignments and never skips lessons, the overall pace of the group can slow down when several participants arrive unprepared or miss lessons.

In weekly courses, where homework completion and attendance tend to be less consistent, this can significantly affect the group’s progress.

In intensive courses, the higher level of commitment from most participants creates a stronger group dynamic, which helps maintain a faster and more productive learning pace.

5. Cognitive benefits of intensive language learning

Interestingly, scientific research also suggests that intensive language learning may have cognitive benefits beyond language itself.

A study examining short-term intensive language courses found that participants showed improvements in attentional performance after only one week of intensive language learning (Bak et al., 2016). The researchers concluded that the mental effort required in immersive language learning environments may stimulate cognitive functions such as attention and executive control.

6. Reaching the “real-life threshold” faster

There is another important factor that I have observed over the years that is rarely discussed but has a huge practical impact: reaching the level at which learners can actually start using the language in everyday life.

In many language frameworks, including the Common European Framework of Reference for Languages, the A2 level represents an important turning point. At this stage, learners typically gain enough vocabulary and grammatical control to manage simple everyday interactions: ordering food, asking for directions, handling basic conversations, and understanding simple information.

In other words, A2 is often the point where the language becomes usable in real life. The timing of when learners reach this threshold can make a major difference in their overall progress.

The advantage of reaching A2 sooner

Imagine two students who both want to reach the A2 level.

One follows an intensive course lasting four weeks and reaches A2 by the end of the program. From week five onwards, this learner can already start interacting with people in the target language in everyday situations. Once that happens, an additional learning process begins: learning from the environment. Conversations with neighbours, reading signs, listening to colleagues, or interacting with shop staff all become opportunities for language development.

Now imagine another learner who studies once per week. Reaching the same A2 level might take roughly a year of lessons. This means that the moment at which the language becomes practically usable arrives about eleven months later. During those eleven months, the intensive learner has already been interacting with the language in real-life contexts. By the time the weekly learner finally reaches A2, the intensive learner may already have improved substantially through daily exposure and practice.

A compounding learning effect

In other words, intensive courses can trigger a compounding learning effect. Once learners reach a level where they can interact with the world around them in the target language, their environment becomes an additional teacher. Everyday experiences reinforce vocabulary, listening skills, and confidence. Because intensive programs allow learners to reach this threshold much sooner, they unlock this real-world learning process far earlier.

From my perspective as the owner of Bart de Pau Language Courses, this is one of the most powerful but often overlooked advantages of intensive language courses: they allow students to start learning from the real world much sooner.

Conclusion

Scientific studies and my own experience running language schools converge on the same conclusion: intensive courses enable faster, deeper, and more practical language learning than weekly lessons.

From covering twice as much material, to higher homework completion, stronger focus, better group dynamics, and reaching the A2 “real-life” threshold much earlier, the benefits of intensive courses are clear.

Intensive Dutch courses at Bart de Pau Language Courses

These conclusions are the main reason why Bart de Pau Language Courses focuses on the niche of intensive Dutch courses.

We operate our own Language Campus, where participants book an intensive course combined with accommodation. Because the campus is located in a relatively remote part of the Netherlands, almost all students — including expats who already live in the Netherlands — choose to stay on site during the course.

This setup creates a powerful learning environment. When participants stay at the campus, they temporarily leave the distractions of their daily lives behind and can fully focus on learning the language.

At the same time, living together turns the course into a 24/7 language experience that extends far beyond the classroom. Participants do homework together and practise Dutch with each other throughout the day. Our evening activities also provide additional informal opportunities to continue speaking and practising the language.

We increasingly see that participants are convinced by the benefits of this intensive learning format. Each year, more and more students come to the Dutch Winter School and Dutch Summer School. With more than 600 participants in our intensive Dutch courses annually, we have become one of the main providers in the niche of intensive Dutch courses.

Learn more:
– Dutch Summer School: www.dutchsummerschool.nl
– Dutch Winter School: www.dutchwinterschool.nl

We’ll be happy to welcome you at one of our intensive language programs!