Pedagogical approach
one day the teacher entered the classroom, clothing xộc xệch, hằm face hằm render both layers are very worried. Just go to the door, he leaned down to pull the slippers are then thrown down Surin airport left corner back. Whole class cringe. He withdrew to the slippers left out throwing down right corner. Students are surprised. Approached the table, I asked: how are you, thanks, you afraid?
-Sir ... scared ... scared. Class bar ...
-so they were not scared by the second world war. The children take the pen, play out a new study: "World War II".
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