Learning protractor for elementary school students who are new to angle

摘要

The present invention relates to a protractor for learning, and the center of the protractor (reference point; center) is marked with the letter "center"; a first base line in which the letters and numbers of "base line" are marked so that a base line (baseline) and 10-degree scales starting therefrom are indicated by semi-rectangular lines starting from a point taken at the center; and a first division; The other base and ten-degree divisions starting there are represented by shorter straight lines drawn by connecting one base of the first base and the end of each scale of the first scale, and the letter "base" and the second base gold part marked with numbers; and a second scale; It is about a learning protractor for elementary school students who are learning angles for the first time. According to the present invention, elementary school students learning angle for the first time can visually learn the concept of angle accurately without confusion, and can easily learn how to use a protractor.