| (43%) | teaching early hilton learning ahatuning guide assessment teach learned theory ... | |
| (14%) | work research people past hist info critical present level south ... | |
| (14%) | talk don tweets working school field courses pm ny join ... | |
| (14%) | talking thinking post publishing question life evidence gis problem historying ... | |
| (14%) | public panel audience things ferguson reading intellectual scholarly fergusonaha site ... |