| Views | |
| Evaluation in the primary school. | 111 |
| December 2012 | January 2013 | March 2013 | April 2013 | May 2013 | June 2013 | |
| Evaluation in the primary school. | 15 | 20 | 4 | 18 | 11 | 5 |
| Views | |
| Y&T_1987(14)_Herholdt.pdf | 46 |
| Views | |
| United States of America | 67 |
| China | 17 |
| Canada | 14 |
| Japan | 4 |
| Iran | 2 |
| Russian Federation | 2 |
| Germany | 1 |
| India | 1 |
| Ukraine | 1 |
| Views | |
| Redwood City | 28 |
| Toronto | 13 |
| Beijing | 11 |
| Sayreville | 8 |
| Seattle | 4 |
| Ashburn | 1 |
| Bangalore | 1 |
| Chicago | 1 |
| Ottawa | 1 |
| San Francisco | 1 |