text: Overall, I agree the principal requiring students to stay after school to participate in any activity. Whether it's football or basketball that needs for students to stay active, or student coucil or year book club that requires them to interact with other peers to get anything done. These activities can benefit every students in multiple ways that help them with many life skills. Extracurricular activities are indeed very beneficial, and the principal has my vote to enforce this rule. The use of this technology to read the emotional expressions of students in a classroom is valuable because student can know what other people are feeeling just by taking a picture.