As a teacher, I feel that 30 minutes is enough for most people. I keep a diary of all my students lessons and needs/wants from me as a teacher. I aim to have all lesson materials ready for their lesson, so that after I ask them how there week was we are straight into playing. If I am going to have something new to introduce, i make sure it is photocopied or printed out for the lesson. This saves time and makes them think I am organised!
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