The venue of previous national games

The 1st National Games: Beijing1959 September 13 to10/0/0/3 October;

The 2nd National Games: Beijing1965 September 1 1 to 28;

The 3rd National Games: Beijing1975 September 12-28;

The 4th National Games: Beijing1979 September 15-30;

The 5th National Games: Shanghai1983 September 18 to10/0/0/;

The 6th National Games: Guangdong1987165438+1October 20th to 65438+February 5th;

Seventh National Games: Beijing1993 September 4th to September15;

The 8th National Games: Shanghai199710/0/October 12 to 24th;

The 9th National Games: Guangdong 200 1 year 1 month 1 month to1month 25th;

10th National Games: Jiangsu, 20051October 23rd 10, 12 to 10;

11th National Games: June, 2009 10 to1October 28th, Jinan, Shandong;

12th National Games: Liaoning 2013 August 3 1 to September12;

13th National Games: Tianjin 2017 August 27th to September 8th.

The general process of inquiry begins with finding and asking questions. After finding the question, make assumptions about the answer to the question according to your existing knowledge and life experience. Design investigation scheme, including selection of materials, design methods and steps, etc. I make an inquiry according to the inquiry scheme, get the result, and then analyze whether the result is consistent with the hypothesis, so as to draw a conclusion. Not all questions need to be explored once to get a correct conclusion. Sometimes, because the method of inquiry is not perfect, wrong conclusions may be drawn. Therefore, after drawing a conclusion, we should reflect on the whole inquiry process. The general methods and steps of inquiry experiment are: asking questions, making assumptions, making plans, implementing plans, drawing conclusions, expressing and communicating.

The common methods of scientific inquiry are observation, experiment, investigation and data analysis.

Observation is the basic method of scientific inquiry. Scientific observation can be made directly with the naked eye, with the help of magnifying glasses, microscopes and other instruments, as well as cameras, video recorders, video cameras and other tools, and sometimes measurement is needed. Scientific observation should have a clear purpose; Observation should be comprehensive, meticulous and realistic, and recorded in time; Planned and patient; Think positively and record in time; It is necessary to exchange views and discuss. The design of the experimental scheme should closely focus on the questions and assumptions raised. When studying the influence of a condition on the research object, experiments with the same conditions except this condition are called control experiments. General steps: find problems and ask questions; Collect information related to the problem; Make assumptions; Design the experimental scheme; Conduct experiments and record them; Analyze experimental phenomena; Draw a conclusion. Investigation is one of the common methods of scientific inquiry. When investigating, we must first make clear the purpose and object of the investigation and make a reasonable investigation plan. Sometimes, due to the large scope of investigation, we must select some objects as samples during the investigation. In the process of investigation, we must record it truthfully. We must sort out and analyze the survey results. Sometimes it is necessary to use mathematical methods for statistics. Collecting and analyzing data is also one of the common methods of scientific inquiry. There are many ways to collect data. Go to the library to consult books, newspapers and periodicals, visit relevant people and collect them online. The forms of data include words, pictures, data and audio-visual materials. It is necessary to sort out and analyze the obtained data, find answers and explore clues.