Robert Recorde (c. 1510-1557) was a pioneer in the teaching of mathematics in the English language. His attempt to popularize mathematics, in fact, was without precedent in any language. Mathematics in the 1500s was still exclusively reserved for mathematicians, and people in general had no interest in the subject. Within a hundred years after Recorde had popularized mathematics, however, this situation had changed. The scientific revolution of the seventeenth centuty occurred and mathematics became an indispensible aspect of man's knowledge. This thesis examines the background and development of Recorde's attempt to popularize mathematics and evaluates that attempt in terms of its relation to the position of science in the modern world.