LATEST LESSONS
New lessons are added almost every week. Check out the most recent lessons on The Blue Tree. Which one looks practical, interesting, or inspiring?
Fighting Workaholism: You are not a Success Machine
This lesson explores workaholism, success, and identity, helping you reflect on ambition, balance, and what defines a meaningful professional life.
How to talk about parties and partying
Learn how to talk about parties and partying, especially in the context of the New Year’s Eve.
Winter of the century
This lesson is based on an article about the winter of the century in Poland in 1978.
SIMPLE SEARCH
Just type in what you are looking for. A new page will load with matching results.
ADVANCED SEARCH
You can filter lessons by titles, categories, tags, or levels.
LIST OF CATEGORIES
There are 20 main categories, or subjects, of lessons on The Blue Tree. First five are about the English language, the next ten are about general interest, and last five relate to personal development.Â
MY ENGLISH DICTIONARY
Add new and interesting words from this lesson to your English dictionary.
Store your words and expressions in this handy dictionary. You can create groups and play games based on your entries. There is also a practical importing feature.
You must log in to see content.
chronological catalogue
Browse through all the lessons using this chronological catalogue of lessons.Â
Fighting Workaholism: You are not a Success Machine
This lesson explores workaholism, success, and identity, helping you reflect on ambition, balance, and what defines a meaningful professional life.
How to talk about parties and partying
Learn how to talk about parties and partying, especially in the context of the New Year’s Eve.
Winter of the century
This lesson is based on an article about the winter of the century in Poland in 1978.
Talking about dreams, hopes, ambitions and plans
Learn how to talk about your dreams, hopes, ambitions and plans. Useful grammar and vocabulary presented in a fun and engaging way.
Hofstede – The Culture Factor
Learn how to talk about culture using the Hofstede Culture Factor and its six dimensions.
Lessons from the Life of Marie Skłodowska Curie
14 lessons from the life of the famous scientist. Speaking lesson.
National Differences
This lesson celebrates national differences. You will learn from it why it is critical to understand that our way of doing things is not the only way. There is also a neat poll inside.
How to set and achieve goals
Learn why it is critical to set clear goals and how harmful are vague goals. It’s the first of a series of lessons on setting and achieving goals.
What’s behind the Ozempic fad
Explore how Ozempic is reshaping health, habits, and society — a clear look at its real benefits, hidden risks, and long-term impact.
Toys vs screens
This lesson discusses the impact of screens on the way children play and the value of toys.
The Story of Dan Price
What do they mean
How to criticise people
Practise collocations for criticising people, like slippery customer or pick a fight, and learn to use them naturally in everyday situations.
Tips for handling disagreements
Learn simple, practical strategies to handle disagreements and turn arguments into constructive conversations.
Idioms with parts of the body
Learn 35 practical idioms with parts of body and use them to discuss everyday topics.
You need to be bored
Boredom can spark creativity and deeper thinking. In this lesson, discover why giving your mind a break from constant phone use is a hidden gift.
The History of Credit Cards
Speaking Cards – Breaking the ice
Use this lesson to get to know each other better. It contains 50 discussion questions that are perfect for a friendly conversation.
The Great Conditional Quiz
Language of recommending, suggesting and giving advice
Test Your English series – this test checks the language of recommending, suggesting and giving advice.
Be respectful to your coworkers
Talking Picture – Books and Reading
The Puzzle of Motivation by Daniel Pink
40 rules for life
Daniel Pink’s 40 rules for life is a special lesson. It’s a wonderful and insightful collection of advice on life that we’d all do well to follow.
How to talk about disappointment
Secrets of Adulthood
Simple truths for our complex lives. This lesson is based on a book by Gretchen Rubin.
What an amazing person
Chairing a Meeting
Managing up
How can an employee manage their bosses? They need to learn how to manage up. That’s what this lesson is about.






























