Embrace Versatility with TRIZ Principle 31: Porous Materials in the EFL Classroom

Greetings, creative English language teachers! Are you searching for novel ideas to enhance your lessons and captivate your students? Today, we’ll explore how to apply TRIZ Principle 31, “Porous Materials,” in the English as a Foreign Language (EFL) classroom. With three practical examples, you’ll be eager to incorporate this versatile approach into your next lesson. Let’s dive in!

What is TRIZ Principle 31: Porous Materials?

In the context of TRIZ, “Porous Materials” refers to the use of materials with a porous structure that allows substances to pass through them. When applied to language teaching, this principle encourages educators to create permeable, adaptable learning experiences that encourage knowledge exchange, collaboration, and feedback.

Practical Example 1: Peer Review and Feedback

Promote knowledge exchange among students by incorporating peer review and feedback into your lessons. For example, after a writing assignment, have students exchange their work and provide constructive feedback to one another. Encourage students to focus on specific aspects, such as grammar, vocabulary, or coherence. By creating a “porous” learning environment, students can learn from one another, improve their language skills, and foster a collaborative classroom atmosphere.

Practical Example 2: Scaffolding Activities

Design scaffolded activities that gradually increase in difficulty or complexity, allowing students to build on their existing knowledge and skills. For example, start with a vocabulary matching exercise, progress to sentence completion, and then move on to a more challenging writing or speaking task. Scaffolding activities create a porous learning experience that enables students to absorb new information at their own pace and apply it in various contexts.

Practical Example 3: Flipped Classroom Approach

Implement a flipped classroom approach, where students explore new topics or language concepts at home through online resources, videos, or readings, and then engage in collaborative activities, discussions, or problem-solving tasks during class time. The flipped classroom model creates a porous environment that encourages students to take ownership of their learning, actively participate in the classroom, and benefit from the collective knowledge of their peers.


Applying TRIZ Principle 31, “Porous Materials,” to your EFL lessons can enhance the learning experience by promoting knowledge exchange, collaboration, and adaptability. By incorporating peer review and feedback, designing scaffolded activities, and implementing a flipped classroom approach, you can create a versatile and engaging learning environment. Give “Porous Materials” a try in your next lesson and watch your students thrive!

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