CLIL stands for Content and Language Integrated Learning, which is a method of teaching that aims to develop both language skills and subject knowledge in students simultaneously.  It involves the use of a second or foreign language as the medium of instruction for a particular subject.

The CLIL method is designed to provide students with authentic language input in a meaningful context, as well as to develop their ability to use the language in real-life situations. It also aims to help students understand subject matter concepts in a more meaningful way, by engaging them in active, experiential learning experiences.  This method can be used in a variety of educational contexts, including primary, secondary, and tertiary education, and can be applied to a range of subject areas, such as science, history, and social studies.

Some of the benefits of the CLIL method include increased motivation and engagement in learning, improved language skills, and greater subject knowledge retention. However, implementing CLIL can also be challenging, and requires well-trained teachers, appropriate resources, and a supportive learning environment.

The CLIL method is typically characterized by the use of various techniques and strategies to integrate language and content in the classroom. Here are some of the most common techniques used in CLIL teaching:

1. Scaffolded instruction: This involves breaking down complex ideas or concepts into smaller, more manageable chunks, and providing students with support and guidance as they work through the material.

2. Cooperative learning: This involves students working together in small groups to complete tasks or solve problems. This technique can help students develop their language and communication skills while also promoting collaboration and teamwork.

3. Authentic materials: This involves using real-world materials, such as newspaper articles, videos, and podcasts, to help students develop their language skills and subject knowledge in an authentic context.

4. Project-based learning: This involves students working on long-term projects that require them to use their language and subject knowledge to complete a task or solve a problem. This technique can help students develop critical thinking, problem-solving, and project management skills.

5. Inquiry-based learning: This involves students asking questions and conducting research to develop their subject knowledge and language skills. This technique can help students develop their curiosity, independence, and research skills.

Overall, the techniques used in CLIL teaching are designed to promote language learning and subject-specific knowledge simultaneously, while also engaging students in active and meaningful learning experiences.