text: In conclusion I think you can still help with or without an reward. He did that from heart to help and sign up for that, also he liked watching the animals every hour and taking care of them so did his friend. He really liked the trips around the world too, just help to be nice somtimes for other people.I don't think the use of technology to read the emotional expressions of students in a classroom is valuable. Sometimes people don't want others to know how their feeling and why their feeling like that. Also, some people might think it's invading their privacy if they didn't give the person permission to read their emotional expressions.