The Radio Mathematics Project is being undertaken in Masaya, Nicaragua, to assess the feasibility and effectiveness of radio as the medium of instruction for primary school mathematics in the developing nations. The curriculum is based upon a series of segments, each of which contains several conceptual or topical strands. Thus, for example, one…

Though the use of educational radio has fallen from fashion, for three reasons it deserves reconsideration as a valuable educational tool: 1) it is economical, costing only a fraction of the required expense to deliver the same material via television; 2) the effectiveness of radio-based instruction has been shown to be equal to that of…