The South Africa Solidarity Committee will sponsor a teach-in, to include speakers and movies about South Africa, and possibly informal workshops, on Saturday Nov. 19.

At a meeting last night the committee postponed till its next meeting consideration of a proposal urging Harvard Corporation to sell its shares in commercial banks which extend credit to the South African government. Such shares are worth slightly less than $1.2 million, according to the 1975-76 financial report to the Board of Overseers.

The proposal also would urge the Corporation to support or initiate shareholder resolutions in corporations in which it holds stock that call upon the companies to reduce or curtail operations in South Africa.