A teaching material selection method, a computer program and a teaching material selection device for selecting the set of most suitable teaching materials on the basis of learning assessment data on an examinee. Provided is a teaching material selection method allowing a computer to execute the steps of: calculating achievement of an examinee in an academic skill area on the basis of learning assessment data of the examinee and a difficulty level of the academic skill area; calculating importance of the academic skill area on the basis of the academic skill area interrelationship structure indicating an interrelationship between the achievement and the academic skill area; calculating a value of a teaching material on the basis of the importance of the academic skill area; and performing calculation for selecting a set of teaching materials on the basis of the value of the teaching materials.