A2+ Pre-Intermediate
For students who can speak a little about themselves but need to strengthen basic grammar and vocabulary.
Course book included:
English File Pre-Intermediate (4th Ed)
ISBN 978-0194037419
Summer Intensive English Course
Summer Intensive English Courses in Amsterdam
Make this summer count: 40 hours of English over 4 weeks in central Amsterdam, with small groups, CELTA-certified teachers and plenty of speaking practice.
Available Courses | A2+ · B1 · B2
At every level the focus is the same — communication. You learn grammar and vocabulary by using them in real conversations and engaging tasks.
B1 Intermediate
For students ready to deepen their understanding of English grammar and expand vocabulary on a wide range of topics.
Course book included:
English File Intermediate (4th Ed)
ISBN 978-0194035910
B2 Upper-Intermediate
For students tackling advanced grammar structures and the vocabulary needed for stronger written and spoken English.
Course book included:
English File Upper-Intermediate (4th Ed)
ISBN 978-0194039697
Activate Your English | Why It Works
Grammar through speaking
You activate grammar through real speaking practice, which makes it easier to remember.
High-quality materials
The fun and engaging Oxford English File textbook with extra online practice.
Personalised goals
Experienced English teachers guide you to set personal learning goals and give you regular feedback.
Friendly atmosphere
Practise English in a friendly, fun atmosphere — including a class WhatsApp group and Language Exchange meetups.
Why MixTree Languages
Taught by professionals
Highly experienced, certified English teachers (minimum CELTA or TEFL) who are native or bilingual speakers.
Designed by experts
Our MA-qualified Learning Manager designs effective English programmes with professional materials.
Focused on you
A detailed level assessment places you on the correct course; teachers help you develop personalised goals with regular feedback.
Highly interactive
An innovative approach maximises your speaking time through discussions and role-plays — speaking is the most effective way to improve.
Certificate of Attendance and Proficiency Level
All packages include a final one-to-one evaluation and a Certificate of Attendance and Proficiency Level based on the Common European Framework of Reference for Languages (CEFR).
Student Reviews & Testimonials
★★★★★ 4.9 on (267 reviews)
Nur E
4 months ago
★★★★★
Ashley, you are an amazing teacher! I started learning English in a group course, and Ashley was my first private teacher. I had excellent communication with her and always attended lessons enthusiastically. Later, we continued with private lessons, and I improved my English during this time. Feeling the care and dedication she puts into her lessons was very motivating. Talking with her in English, sharing my daily life and plans, felt almost like therapy; I left each lesson happy and inspired. I can now express myself better. The immigration process is already challenging, and working with a kind and supportive teacher like Ashley was truly valuable. I hope everything goes as she wishes she is an amazing teacher.
Ott Boes
2 months ago
★★★★★
Fantastic place to improve your language! Nice people very good teachers. They do everything to teach you all the varieties of the English language so classes are never boring! Its dynamic and interesting because of all the nationalities you meet here. I fully recommend
angelika czubasiewicz
5 months ago
★★★★★
Taking English classes at Mixtree School was such a great experience. The people there are amazing and the teachers are really supportive and friendly. I highly recommend this school to anyone looking to improve their English. And honestly, they also have really good coffee!
Ready for an English-powered summer?
Schedule a free English level check — it only takes 15 minutes.