"What are the gains of the theory of algorithms: Basic developments connected with the concept of algorithm and with its application in mathematics". Table of contents of the paper; covering letter; directions for prepublishing; typed copy of the paper.

A.P.Ershov recommends to include report by A.L.Semenov in program of Congress on logic, philosophy and methodology of science, that will be held in Moscow in 1987.

Registration card accompanying a copy of S.Papert's telegram on possible dates of his arrival, and this copy itself. The back of the copy is marked by Ershov's notes.

The author proposes to resume the work on Informatics manual for ninth and tenth classes of the secondary school.

concerning themes of Soviet-American scientific collaboration in the field of "Education Methods".

prior to a Soviet-American discussion on "scientific methods in education".

The author proposes to create an international "study group" on Theoretical Foundations of Informatics in Education, offers concrete candidates and asks about sponsorship.

The author tells his impressions about methodic directions "Foundations of informatics and computer engineering" and about the article by M.S.Burgin in journal "Programming".

discusses some working aspects, such as potential participants, the theme of his talk, organizing activity

asks to consider A.L. Semenov as his co-author