DIDACTIC THEODOLITE MEASURING INSTRUMENT WHICH MAKES IT POSSIBLE TO INTERPRET AN INTERACTIVE FORM THE TRIGONOMETRIC AND GEOMETRIC REASONING USABLE IN THE PEDAGOGY

摘要

#$%^&*AU2018100746A420180823.pdf#####ABSTRACT Measurement instrument that offers a didactic interpretation for trigonometric and geometric reasoning in an interactive way, applied in education, characterized by projecting the opposite, adjacent and hypotenuse legs and orientation references and geographical points so that the user, besides calculating and measure angles, distances in field, can observe the elements that make up to triangulation and the references already mentioned. This instrument consists of two dials, one azimuth and one zenith, which are protractor graduated in three types of angular measurement scales, the vertical dial is characterized by having a laser to measure angles, which is also used as a plumb line when turning it 90 O. It also has a laser pointer, which incorporates a tubular level so that the laser remains horizontal so that a reference can be projected to rethink with respect to it. As for the horizontal dial, it is characterized by using a mirror with an inclination of 45 with respect to the horizontal, by means of the reflection we can project horizontal and vertical points with the same laser and also has a plate on the back of the mirror that is rotated 180 0 and emits lines on a surface in different directions. It also stands out by incorporating a compass on the horizontal limb, which works symmetrically with the dial, which allows us to project the magnetic north through a beam of light to later appreciate a measurement, calculate, and project azimuth and directions.