Uses of Technology in Upper Secondary Mathematics Education . . . . . 1rn1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1rn2 Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2rn2.1 Technology in Secondary Mathematics Education: Theory . . . . . . 2rn2.2 The Role of New Technologies: Changing Interactions . . . . . . . . 11rn2.3 Interrelations Between Mathematics and Technology . . . . . . . . . . 17rn2.4 Teacher Education with Technology: What, How and Why?. . . . . 24rn3 Summary and Looking Ahead. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31rnReferences. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32rnvii