No abstract

This research based on the result of preliminary observation at MTs Nurul Huda Beringin. Documentation of supervision by headmaster who has been held in the school, data showed that the learning mathematics with scientific approach applied by teachers are still not optimal. Based on documenttion of learning outcome students the data that there are 40% of students not reached the minimum competence criteria. Humans have nine types of intelegence, seven of the nine types of intelegence are: verbal/linguistic intelegence, visual/spatial, logical/mathematical, musical, bodily/kinesthetic, interpersonal and intrapersonal. This research is a classroom action research with qualitative descriptive approach implemented in class VII MTs Nurul Hudda Beringin, Cirebon, on the material relations and function. Based on the analysis we concluded that the study of mathematics involving multiple intelegences with scientific approach by the steps: 1) preliminary activities; 2) the core activities consist of observasing, ask, gather information, associates and communicate; and 3) the cover. While multiple intelegences involved in learning is verbal/linguistic intelegence, visual/spatial intelegence, logical/mathematical intelegence, musical intelegence, the intelegence of the body/kinesthetic, interpersonal and intrapersonal intelegence. In the first cycle, the average result of observation activities of students and teachers was 70% and 76%  in the unfavorable and fairly category. In the second cycle, the average results of observation activities of students and teacher was 82% and 83%, both  in good categories. In the first cycle, the achievment of students VIII-A is a total of 18 students or 46% students take the final value more than 75. In the second cycle, the achievment of student VIII-A is of the total of 31 students or 80% students obtain the final score more than 75. So the achievment learning was increasing 34% from the first cycle to the second cycle.

This study was conducted to describe the difficulties of students in the proof using mathematical induction as well as efforts to resolve it using the Scaffolding. Scaffolding is providing assistance given by teachers or peers who are more capable to students so that they can reach their potential level. This study uses a qualitative research design types of case studies, where data is obtained in the form of observations sheet test and an interview with the subject. The subject is based on the results of diagnostic tests that are classified according to type of error is then taken of each group of students as subjects. Based on the research, found the location of the difficulties experienced by students in the proof of proposition using mathematical induction, namely the difficulty in manipulating algebra to show the truth of Pk + 1. Of these difficulties, students are given the scaffolding in accordance with the difficulties faced by each student. Depth scaffolding scaffolding provided is a second level that is explaining, reviewing and restructuring and third tiers of scaffolding that is developing conceptual thinking. The advice given by researchers is the teacher must give emphasis or affirmation special steps to make assumptions and define a form Pk + 1, the student must master the other concepts that relate to a given problem, so as to make the connection between Pk and Pk +1, and similar studies should be conducted with more depth on other types of problems, such as conjecture. Keywords: Diagnosis difficulty, Mathematical Induction, Scaffolding

This study aims to describe the algebraic reasoning ability of high school students in reflective and impulsive cognitive styles. The design of this study is case study under qualitative descriptive research. Cluster sampling and purposive sampling were used as data collecting technique. The research subjects were four students of MA Nurul Huda Beringin with categories: two reflective subjects and two impulsive subjects. This study employed cognitive style test (MFFT), algebraic reasoning test, interview test and observation as the instruments. The data analysis techniques used in the form of data reduction, data presentation and drawing conclusions. The data were triangulated to test the validity. The results of the analysis algebraic reasoning abilities showed that the reflective subject has been able to meet the indicators at level 6 of algebraic reasoning (replacing numeric numbers with parameters, performing algebraic operations on two parameters and knowing the special nature of algebraic operations). Meanwhile, impulsive subjects have not been able to fulfill the indicators of level 6 algebraic reasoning (replacing numeric numbers with parameters, performing algebraic operations on two parameters and knowing the special nature of algebraic operations) in full. This is because the impulsive subject has not fully used the distributive property of algebraic multiplication in the process of solving three problems.

This study aims to describe the results of the analysis of students' mathematical proportional abilities in terms of independent field learning styles. This research was conducted at MTs Nurul Huda Beringin in September Odd Semester, Academic Year 2020/2021 with a total of 9 students of class VII A. The research subjects were selected by purposive sampling, consisting of 2 students with independent field cognitive style. The research method used is descriptive qualitative with a case research design. The data technique used the Group Embedded Figures Test, mathematical proportional reasoning ability tests, in-depth interviews and observations. Data analysis techniques were performed by data reduction, data presentation, and data retrieval. The technique of checking the validity of the data used the technique triangulation method. The results showed that: (1) There were 2 students who had a cognitive style in the field. (2) Students with field independent cognitive style, namely LH and DK subjects are at level 3 formal proportional reasoning, the second subject has been able to meet the indicators of finding values or quantities to compare, indicators find relationships between values or quantities and indicators use appropriate procedures in calculating comparisons.