Ringkasan Jurnal Cjr.docx

Journal II

This journal describes how the teaching and learning process of trigonometric learning, in general and usually students do tryonometry learning only by writing and memorizing, and all depends on the teacher who teaches them, sometimes there are teachers who want to develop students' attitudes in learning, but there are also students who do not give students the opportunity to develop student attitudes in trygonometry learning, and usually there are two types of books used in learning, namely books that are full of formula formulas, where they students will walk straight, and do not want to find out the origin of the formula , and they will be monotonous in learning, seeing, reading and memorizing, but in other books, generally the buu only makes general formulas, but there is no origin of the formula, so that students are creative, and want to know how to get the formula, so they are not too monotonous memorizing, even monoton also to continue to think creatively in finding and completing formulas, and the expected method is where methods by developing students' creativity by not thinking monotonously and only memorizing, where students want to be developed to keep thinking creatively and keep on finding out the origin of formula formula, and can do varied tasks in learning the trgonometry. in this system, many must be corrected to make the desired method in developing student learning attitudes, must begin with the initial plan in completing the process of developing children's thinking, plans in the learning system, what is learned and others To develop the instructional devices, the researcher used developing model of ADDIE which consists of Analysis, Design, Develop, Implementation, and Evaluation. Based on the description above, the researcher was interested to conduct a R&D research to develop mathematics instructional devices based on guided discovery in topic of trigonometry for student grade XI science program. The aim of this research were to develop a proper (valid, practice, and effective) mathematics instructional devices based And solving problems used is using method methods that make children think creatively solve math problems and especially trygonometry, while teacher teachers also become role models who care about children's thinking in solving problems and learning trygonometry, where they can help learn students in a good way, right, directed but still developing children's creativity.

Journal I in this journal, he discusses the methods used to study geometry, where most students always memorize and continue to write paper-based, and it is also known that trygonometry and mathematics are very important subjects, where these lessons have many lessons with other subjects, such as arithmetic, physics, and others, and this greatly affects if trygonometry and mathematics are still difficult to understand, basically it is well known that learning tryonometry is wrong from the start, where at the beginning they used algebra, functions and others, where students were very difficult to unite their thoughts in carrying out or mobilizing tasks and learning trygonometry, with functions, algebra and others, made them feel difficult, because the three fields were united together, so loading students was very difficult to learn trygonometry, many experts, who had conducted research on learning tr this difficult trygonometry. the solution to this problem is to divide the group, and each group has their own duties in understanding algebra, functions, algorithms and others related to trygonometry, so that each group can understand each other, exchange thoughts about the learning and so they know the stage the stages are one by one, and they understand that, and so typing the question of trygonometry related to it such as the function algebra, the algorithm can go in the same direction, and not complicate it anymore, for students, so this learning is easier, and keep practicing and repeating dpat can make students or students not monotonous in learning and memorizing, so they do not know how to solve problems in different conditions, and in a state of many functions and alajabar that are difficult to solve if using the memorization method. as well as their students, many know tyrgonometry but they do not know its properties and how they exist. and at its conclusion there are indeed many students who do not understand trygonometry, and are more clueless when connected with other functions, such as algebra and algorithms, so they always find it difficult to learn. and to solve all these problems, they use a gradual method so that problems in understanding with other functions, can be solved properly, and they students must continue to be given assignments, homework, discussion, they know how to solve varied questions, and they are not monotonous to memorize, but know how to do the problem questions, in every situation.