खेल-कूद विधि (प्ले-वे मेथड) का निम्नलिखित में से कौन सा सिद्धांत आत्म-अनुशासन विकसित करने में मदद करता है?

A teacher encourages students to make concept maps after teaching a topic. This would be helpful in: (i) conducting formative assessment. (ii) testing the capability of students to summarize the main points. (iii) developing rubrics to evaluate the learning level of the students. (iv) testing the artistic ability of students.

Which of the following is considered an effective teaching technique to enhance students' learning outcomes?