| 摘要 |
Communicating in an educational environment includes placing a chalkboard in a private mode that allows a user of the chalkboard to view information exclusive of others in the educational environment. Information is displayed on the chalkboard according to the private mode. The chalkboard is placed in a public mode that allows the chalkboard to control a common display, and information is controlled on the common display using the chalkboard. The common display is viewable by others in the educational environment according to the public mode. |
