छात्रों के सीखने के परिणामों को बढ़ाने के लिए निम्नलिखित में से किसे एक प्रभावी शिक्षण तकनीक माना जाता 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 principles of the play-way method helps in cultivating self-discipline?