Electronic Pocket Book of Algebra Concepts for Basic Chemistry Learning Stoichiometry Focus Subject

Mathematical abilities are very important in building students' abilities in all aspects. Mathematical abilities are needed not only as numeracy skills but the ability to use mathematical logic in solving problems. Mathematical concepts are needed even for other scientific fields. This algebra concept electronic pocket book was created to help students during basic chemistry learning. The focus of the material chosen in basic chemistry learning is stoichiometry that applies algebraic concepts. This pocket book is useful for streamlining basic chemistry learning, especially on stoichiometry materials that use algebraic concepts in their operations. This algebra concept electronic pocket book has been tested on stoichiometric material. This book was tested on first semester students for basic chemistry courses.The test results on the first semester students showed a significance value of less than 0.05, which indicates that there was a difference in the average between group A and group B

Identification of Student Errors in Solving Problems on the Limit of Algebra Functions in Class XI SMAN 4 Palangkaraya

This study aims to describe the mistakes of class XI students of SMA Negeri 4 Palangka Raya in solving the limit problem of algebraic functions and their causative factors. This research is a descriptive study with a qualitative approach. Data collection techniques are tests and interviews. The research instrument was a question sheet and interview guidelines. The questions used are in the form of a description consisting of 5 questions. Before being used, the questions were reviewed by 3 raters, namely 2 mathematics education lecturers and 1 mathematics teacher. From the results of the study it was concluded that all questions could be used. Checking the validity of the data was carried out by observing persistence and triangulation of sources. Then the collected data were analyzed using data analysis techniques proposed by Miles and Huberman, namely data reduction, data presentation, and drawing conclusions. The results showed that the errors made by students on the limit of algebraic functions were: (1) Conceptual errors: (a) errors in understanding the concept of limits which consist of formulas, theorems and definitions of limits. (b) the use of formulas, theorems and definitions of limits that are inconsistent with the conditions for the application of the formula; 2) Procedural errors: (a) errors in calculations, (b) inability to write work steps regularly. (c) errors in applying rules, principles or formulas. (d) the inability of students to manipulate algebraic forms based on applicable properties or principles. As for the factors causing students in this study in terms of internal factors of students.

The Effect of Giving Guidelines for Questionnaire Completion in Direct Learning on the Understanding of the Mole Concept in Class X MIPA MAN Students in Palangka Raya City 2018/2019 Academic Year

Many students have difficulty understanding the concept of the mole. Based on this, the purpose of this study is to describe the effect of providing guidance on completing practice questions in direct learning on understanding the concept of mole in class X MIPA MAN Palangka Raya City 2018/2019 academic year. This research is a quantitative research, the research involved 62 students of class X MIPA MAN Palangka Raya City. The instruments used were test I, test II, and practice questions with completion guidance. The results of statistical tests using the t-test show that the t-test (1.72) is greater than the table (1.67) at a significant level of 5%, meaning that there is an influence on the understanding of the concept of the mole concept of direct learning using exercise questions with completion guidance in class X students. MIPA MAN City of Palangka Raya for the 2018/2019 Academic Year. The mean score of the experimental class II test (82.67) was higher than the control class (77.50).

Implementation Of Scientific Approach Learning to Measurement Materials In Class VII Semester I Of SMP Negeri 7 Palangka Raya In The Academic Year 2018/2019

The purpose of this research is to know: (1) psychomotor skills of student’s using scientific approach learning on measurement material, (2) mastery of learners cognitive outcomes of learning after learning using scientific approach on measurement material. This research is pre-experimental research using one-shot case study design. The population of this study is all of seven grade students of first semester SMP Negeri 7 Palangka Raya in academic year 2018/2019 which amounts to 4 classes. The number of samples taken in this study as one class with random sampling technique. The sample in this research is class VII-2 with total 26 students. The result of data analysis obtained psychomotor skills for two meetings on the component moving (P1) obtained an average value of 85.94% with good category, components manipulating (P2) obtained an average value of 79.69% with enough category, and component communicating (P3) obtained an average value of 57.82% with less category. Mastery learning individually from 22 students take the test, obtained 13 complete students and 9 students is not complete. Classical learning is not complete because only obtained 59.09% complete student and did not reach standards of classical completeness ie ? 75%. The completeness TPK was obtained 13 (68.42%) of TPK complete and 6 (31.58%) of TPK unfinished from 19 TPK used.

Relationship Of Emotional Intelligence and Learning Activities With Results Of Learning SMP Negeri 14 Palangka Raya

This study aims to determine: (1) Whether there is a relationship between emotional intelligence and mathematics learning outcomes; (2) Whether there is a relationship between learning activities and mathematics learning outcomes; (3) Whether there is a relationship between emotional intelligence and learning activities with mathematics learning outcomes. The population in this study were all VII grade students of SMPN 14 Palangka Raya City in the 2018/2019 academic year consisting of 3 classes with 80 students with a sample of 76 students.. The results of the questionnaire of emotional intelligence and learning activities obtained as many as 30 valid statements. While the trial results of 30 test items obtained 25 valid test items. Normality test of emotional intelligence data obtained values , nce learning activities gained value , and test data on mathematics learning outcomes obtained grades , while the value in the table is . After values compared to value in the table, note that for all data are normally distributed. Thus, the tool used to test the first two hypotheses is the product moment correlation and the third multiple correlation. The results of the analysis of hypothesis testing with a sample of 76 students and a significant level , can be collected; (1) There is a significant positive relationship of emotional intelligence with mathematics learning outcomes with grades r = 0,41 and = 3,90 ? = 1.9908; (2) There is a significant positive relationship of learning activities with mathematics learning outcomes r = 0,546 serta = 5,61 ? = 1.9908; (3) There is a significant positive relationship between emotional intelligence and learning activities with learning outcomes in mathematics, values ??are obtained R = 0,59 dan = 20,467 ? .

The Implementation of Experiment Method to Enhance Psychomotor Skill and Learning Result in Light Material

The purpose of this study are: (1) to know the psychomotor skills of students, (2) to know the completeness of students' cognitive learning outcomes. This research is a pre-experimental research using one-shot case study design. The population of this research is the entire class VIII of second semester of MTs Negeri 2 Palangka Raya of academic year 2017/2018.The sample of the study is class VIII-H with the number of students 38 people. The results of the data analysis showed that the psychomotor skills tests carried out during the learning with the experimental method showed that the average psychomotor skills of the groups in all the learning groups from 5 groups had 1 group that had the highest score was group III with a score of (86.25) in very good categories and group I which gets the lowest score is (72.2) in good categories and per aspect of learning I aspects number 1 and 10 with the value (90) of the category being the highest value aspect and in Meeting II aspect number 1 with the value (90) the good category becomes the highest value aspect. Completeness of individual cognitive learning results obtained from 38 students who took the test, 24 students complete learning and 14 students are not complete. In classical, learning is said not complete because only 63,16% of students who completed the completion of the classical completeness standard set is ?75%. Completed total learning objectives (TPK) that complete as many as 17 TPK from 28 TPK with the percentage of TPK which complete 60,71%.

The Difficulties of X Grade High School Students in Palangka Raya City Academic Year of 2018/2019 in Understanding Chemical Bond Concept using Two-Tier Multiple Choice

The concept of chemical bonds is one of the concepts that students are less familiar with, so there is a need for a diagnostic test to determine students' difficulty. This study aims to describe students' difficulties in understanding the concept of chemical bonds using two-tier multiple-choice which includes the following sub: (1) stable electron configuration, (2) valence electrons, (3) ionic bonds, (4) covalent bonds, and (5) metal bonds. The subjects of this study were students of class X MIA from SMA Negeri 1 Palangka Raya, SMA Negeri 3 Palangka Raya, and SMA Negeri 4 Palangka Raya with a total number of research subjects being 335 students. Students' difficulties in understanding the concept of chemical bonds were expressed using the Tes Kemampuan Ikatan Kimia (TKIK) form two-tier multiple choice of 15 questions and interviews to confirm the students' difficulty. The test results of TKIK showed a reliability of 0.68, an item discrimination power of 0.5, and an item difficulty level of 0.41. The results showed that the difficulty of the students in understanding the concept of chemical bonds with the percentage of the most difficult to easy difficulties was in order to determine the covalent bonds of 58.7%, determined the ionic bond at 55.4%, determined the metal bond at 54.3%, determined the stable electron configuration of 35.8%, and determine the valence electrons at 35.1%.

The Effect of Media Composition on the Growth of Earthworms (Lumbricus Terrestris) to Support the Learning Process on Annelida Material in Class X Semester I SMA

The study was conducted to determine the growth of earthworms (Lumbricus terrestris) using artificial media and the use of research results to support the learning process on the concept of invertebrate growth as a support for the learning process on annelid material in class X semester I SMA. This research was conducted at the Biology Education Laboratory of Palangka Raya University from June to July 2018. This study used a completely randomized design with 3 types of treatment and 6 replications. The material used was 72 earthworms (Lumbricus terrestris) with an average biomass and body length. Organic material as a living medium, namely P0 control / soil without a mixture of manure, P1 soil 2 Kg + 2 Kg cow manure, P2 Soil 2 Kg + 2 Kg goat manure, P3 soil 2 Kg + 2 Kg chicken manure. The parameters measured were the length and biomass of earthworms for 7 days after the worms were introduced into the media (at the beginning and end of the study). Supporting parameters measured are soil pH, soil temperature and humidity. Data were analyzed using analysis of variance (ANOVA) followed by LSD (Least Significant Difference) at the 5% level. The results showed the highest increase in length and biomass of earthworms (Lumbricus terrestris) in treatment (P3) (chicken manure). The results of the research can be used to support the learning process in the form of Student Worksheets (LKS) in class X SMA.

Kemampuan Siswa Memperoleh dan Memahami Konsep Hidrolisis Garam dalam Pembelajaran Menggunakan LKS Berbasis Belajar Penemuan pada Siswa Kelas XI SMAN 2 Palangka Raya Tahun Ajaran 2018/2019

Materi larutan merupakan materi yang sulit bagi kebanyakan siswa, salah satunya materi hidrolisis garam. Penelitian ini bertujuan untuk mendeskripsikan kemampuan siswa memperoleh dan memahami konsep hidrolisis garam dari asam kuat dan basa lemah dalam pembelajaran menggunakan LKS berbasis belajar penemuan. Penelitian ini merupakan penelitian deskriptif. Subyek penelitian adalah siswa kelas XI MIPA SMA Negeri 2 Palangka Raya tahun ajaran 2018/2019 yang berjumlah 36 siswa. Instrumen yang digunakan berupa soal tes pemahaman konsep (pretes dan postes) dan LKS berbasis belajar penemuan. Data dikumpulkan melalui tiga tahap, yakni pretes, pelaksanaan pembelajaran, dan postes. Hasil penelitian menunjukkan bahwa kemampuan siswa dalam memperoleh konsep hidrolisis garam dari asam kuat dan basa lemah dalam pembelajaran menggunakan LKS berbasis belajar penemuan tercermin dari jumlah siswa yang memperoleh konsep, yaitu rata-rata sebesar 82,64%. Pemahaman konsep siswa tentang hidrolisis garam dari asam kuat dan basa lemah dalam pembelajaran menggunakan LKS berbasis belajar penemuan rata-rata sebesar 89,81%. Solution material is a difficult material for most students, one of which is salt hydrolysis. This study aims to describe the students' ability to obtain and understand the concept of salt hydrolysis from strong acids and weak bases in learning using discovery learning based worksheets. This research is a descriptive research. The research subjects were students of class XI MIPA at SMA Negeri 2 Palangka Raya in the 2018/2019 academic year, totaling 36 students. The instruments used were in the form of concept comprehension test questions (pretest and posttest) and discovery learning-based worksheets. Data were collected through three stages, namely pretest, implementation of learning, and posttest. The results showed that the students' ability to obtain the concept of hydrolysis of salt from strong acids and weak bases in learning using discovery learning-based worksheets was reflected in the number of students who obtained the concept, namely an average of 82.64%. Students' understanding of the concept of salt hydrolysis from strong acids and weak bases in learning using discovery-based worksheets an average of 89.81%.

THE EFFECT OF EMOTIONAL INTELLIGENCE ON DIVERGENT THINKING ABILITY IN SOLVING MATHEMATICAL STATISTICS PROBLEMS

The purpose of this study was to determine the effect of emotional intelligence on divergent thinking skills in solving statistical mathematical problems in eighth grade students of Junior High School 9 of Palangka Raya. The subjects in this study were 120 grade eighth students of Junior High School 9 of Palangka Raya. The instrument is a questionnaire of emotional intelligence consisting of 31 statements used to measure the level of emotional intelligence of students, and 4 divergent mathematical problems to measure students' divergent thinking skills. The results of the classification of emotional intelligence levels of students are 17 students with high levels of emotional intelligence and 113 students with moderate levels of emotional intelligence. Research results show that the average divergent thinking ability in solving mathematical problems of students with high emotional intelligence levels is 52.64 while the divergent thinking ability in solving mathematical problems of students with moderate emotional intelligence levels is 49.56. The results of data analysis showed that there was no real effect of emotional intelligence on divergent thinking skills in solving mathematical problems in statistical material in grade eighth students of Junior High School 9 of Palangka Raya.