OPINIONS OF THE SECONDARY SCHOOL TEACHERS RELATIVE TO THE INSTRUCTION OF THE CONCEPT OF "FUNCTIONAL LIMIT"

The results of a survey on the opinions of the Secondary School teachers of Mathematics in Galicia are shown, relative to the instruction of the concept of "Functional limit" Of a wider work, only three appearances related with the subject are shown in this communication: The teachers' view on the suitable level in which it considers would have to give notion of limit of functions in the itineraries of the Secondary School; the referents that teachers use in their introduction are identified, and, finally, instruments, technical and tools that the teacher uses usually in the instruction of the mathematical object are analyzed. At the same time, the influence of the general context of the classroom in the strategies, tools and procedures is considered.