We make the timetable of day and night. It took us 40 minutes to make the circle graph. There were children whose graph was 25 hours a day. I could not but laugh at it. It was a good idea to have them make the graph by themselves instead of giving them the ready-made graph form.
Children think and do something about it if they are given an exact aim of the work.
Before and after the culmination of December, we make a record of the shadow every five minutes. Not all of children but each group continued the work. We started recording the time of sunshine. We prepared for the observation as regards the relationship between the length of the sun and temperature. We made sure of the way of the observation with the stick of the altitude of the sun.