PENGARUH COOPERATIVE LEARNING DIPANDU INQUIRY TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA SMA BERKEMAMPUAN ATAS DAN BAWAH DI KOTA METRO

The purpose of this research is to know the influence of biology teaching through inquiry integrated with cooperative towards the critical thinking ability. This research addresses the role of inquiry and cooperative learning strategy as well as these interactions towards the increase of the critical thinking ability. Quasi experimental research of Pretest-postest nonequivalent control group design with factorial design 2x2x2 were implemented on the odd semester in academic years of 2006/2007  on X grade student of the state SMA in Metro City Lampung. The  research sample consists of 96 students, comprising of student from high and low academic abilities. To examine hypothesis, it is used Ancova technique and continued by LSD test. There was a difference on the critical thinking ability  between students who learn by inquiry level 1 with student who learn by inquiry level 2, between students, who have high academic ability and students who have low academic ability, and there was not difference on the critical thinking ability  between students who learn by STAD cooperative  with student who learn by TPS. There is no effect of interaction between inquiry with cooperative, inquiry with student’s academic ability, cooperative with student’s academic ability, inquiry with cooperative and student’s academic ability towards the cognitive achievement Kata kunci: cooperative learning, inquiry, berpikir kriti

PEMBELAJARAN KONSTRUKTIVISTIK UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA SMA

The purpose of this research is to know the influence of biology through constructivistic learning towards the critical thinking ability. This research addresses the role of constructivistic learning (inquiry and cooperative learning strategy) as well as these interactions towards the increase of the critical thinking ability. Quasy experimental research of Pretest-postest nonequivalent control group design with factorial design 2x2x2 were implemented on X grade student of the state SMA in Metro City Lampung. The  research sample consists of 96 students. To examine hypothesis, it is used Ancova technique and continued by LSD test. There was a difference on the critical thinking ability  between students who learn by inquiry level 1 with student who learn by inquiry level 2. and there was not difference on the critical thinking ability  between students who learn by STAD cooperative  with student who learn by TPS. There is no effect of interaction between inquiry with cooperative towards the critical thinking ability. Kata kunci: konstuktivistik, kemampuan berpikir kriti

UJI TINGKAT KEKONTRASAN PREPARAT JARINGAN OTOT MENGGUNAKAN PEWARNA ALAMI DARI LARUTAN UMBI BIT (Beta vulgaris L) SEBAGAI SUMBER BELAJAR BIOLOGI

Cell or tissue dyes that have been used are synthetic dyes where the chemicals are relatively expensive and carcinogenic in nature. Alternativedyes can be used are natural dyes that have a high affinity for the componentsof cells or tissues. The aim of this study was to determine the contrast level ofmuscle tissue preparations stained using solution (Beta vulgaris L) anddetermine the concentration of solution (Beta vulgaris L) which had the besteffect on the level of muscle tissue contrast.This type of research is an experimental study with qualitativedescriptive data processing, the design uses 6 treatment variations of beetrootconcentration concentration (20%, 50%, 60%, 75%, 90%, 100%) and 2treatments as a control (without coloring and eosin coloring) with 3replications. Data obtained by direct observation using a microscope anddocumented with a camera and then conducted a review by biologists. Theparameter observed was the contrast of the color of the muscle tissuepreparation. The results showed that the contrast level of (Columna livia)skeletal muscle tissue preparations stained using solution (Beta vulgaris L) wasbest at a concentration of 60% was very clear criteria and very contrasted withthe average value obtained 2, 74. The results of this study were compiled as asource of learning biology in the form of practical instructions for class XI highschool students in the structure and function of tissue in animals with anaverage percentage worth of 86%

PENGEMBANGAN PANDUAN PRAKTIKUM BERBASIS ANDORID

The learning process in higher education, especially biology education, cannot be separated from practicum activities. The process of practicum activities with various observations of course requires a proper practicum guide so that the development of a microtechnical practicum guide is needed. The practical guide accompanied by the android system is expected to help students to more easily carry out practicum activities. Of course, these studies require a valid theoretical study to support scientific work to be better. This paper aims to describe the understanding of theory, the different forms of theory, the role and function of theory, as well as theory building techniques, including the practical ability to produce citations in theoretical research using methods and methods of citing references and this paper aims to find out that the development of an android-based practicum guide can be used as a reference. learning media by examining various articles that have been published

MODEL PROBLEM BASED LEARNING DAN MOTIVASI TERHADAP PENINGKATAN HASIL BELAJAR BIOLOGI PESERTA DIDIK

Abstrak : Keberhasilan suatu proses belajar mengajar dipengaruhi oleh berbagai faktor. Dalam penelitian ini terdapat dua faktor yang mendominasi yaitu model pembelajaran dan motivasi yang dimiliki siswa saat belajar. Dengan menerapkan model pembelajaran yang tepat akan membuat kegiatan belajar mengajar lebih menarik sehingga menarik rasa ingin tahu siswa untuk belajar. Rasa ingin tahu merupakan motivasi alami yang dimiliki oleh siswa, sehingga mereka tertarik untuk mengikuti proses pembelajaran. Dalam penelitian ini model yang akan digunakan adalah Problem Based Learning atau dikenal dengan Problem Based Learning (PBL). Model pembelajaran ini berorientasi pada siswa, dimana guru akan memberikan objek permasalahan yang berkaitan dengan materi dan siswa akan diminta untuk menganalisis penyelesaian masalah tersebut dengan menggali berbagai informasi baik dari buku, internet ataupun hasil siswa. Sedangkan guru hanya berperan sebagai fasilitator dan mengarahkan siswa. Tujuan dari artikel review ini adalah (1) untuk mengkaji model Problem Based Learning (2) mempelajari hasil belajar (3) untuk mengkaji model Problem Based Learning dalam meningkatkan hasil belajar. Abstract: The success of a teaching and learning process is influenced by various factors. In this study, there are two factors that dominate, namely the learning model and the motivation that students have when learning. By applying the right learning model, it will make teaching and learning activities more interesting so that it attracts students' curiosity to learn. Curiosity is a natural motivation possessed by students, so they are interested in participating in the learning process. In this study, the model to be used is Problem Based Learning or known as Problem Based Learning (PBL). This learning model is oriented towards students, where the teacher will provide an object of problems related to the material and students will be asked to analyze the resolution of the problem by exploring a variety of information both from books, the internet or students' results. Whereas the teacher only acts as a facilitator and directs students. The purpose of this review article is (1) to examine the Problem Based Learning model (2) to study the learning outcomes (3) to examine the Problem Based Learning model in improving learning outcomes

Pengaruh Investment Opportunity Set, Persistensi Laba, Struktur Modal Terhadap Kualitas Laba

This study aims to measure the degree of impact of investment opportunities by using the price-to-earnings ratio, measuring persistence by calculating the difference between current period's earnings before tax (EBT) and previous period's profits and then dividing by company assets. Meanwhile, capital structure is measured by dividing the amount of capital by the total debt or debt-to-equity ratio (DER). This study used quantitative methods. Samples are obtained by applying purposive sampling methods, i.e. selecting samples according to various predetermined criteria. The sample for this study is 210 manufacturing companies listed on the Indonesia Stock Exchange (IDX) during the period 2018-2020. The result of this study is that there is no effect between the investment opportunity set (IOS) and the quality of the profits obtained. Bottom line, investors don't always use the IOS value parameter when making investment decisions. The quality of a company's profits has a negative impact on the durability of profits. From these results it can be said that if a company has a good level of consistency, it will improve the quality of its profits. Capital structure has a negative impact on profit quality. This means that the higher the value of the company's assets, the lower the quality of the company's profits through debt financing

PERBANDINGAN LARUTAN BUAH PINANG (Arecha catechu L) DAN DAUN SIRIH HIJAU (Piper betle L) TERHADAP KEJELASAN JARINGAN HATI SEBAGAI ALTERNATIF PEWARNA ALAMI PREPARAT JARINGAN SEBAGAI SUMBER BELAJAR BIOLOGI

Fruit Arecha catechu L and leaf Piper betle L are plants that contain pigments that can be used as natural dyes for tissue preparations. This studyaims to determine the differences in liver tissue clarity using natural Arechacatechu L and leaf Piper betle L, determine the natural coloring solution ofArecha catechu L and Piper betle L the best for the clarity of tissuepreparations and research results can be used as a source of high schoolbiology learning in the form of practical instructions. Research conducted at the Integrated Science Laboratory of the Universitas of Muhammadiyah Metro in May 2019, the results of a photoanalysis of liver tissue preparations with natural dyes fruit Arecha catechu Lobtained percentage on criteria 1 "very clear and very contrast" (46.66%),criterion 2 "unclear and contrastless" (40%) and criterion 3 "unclear andnon-contrasting" (13.33%), while the percentage results obtained on photos ofliver tissue preparations with natural dyes of leaf solution Piper betle L incriterion 1 "very clear and very contrasting" (40%), criterion 2 "unclear andless contrasting" (40%) and criterion 3 "unclear and not contrasting" (20%).The results of this study were compiled as a source of learning biology in theform of practical instructions and validated by two expert lecturers, obtainingan average percentage of 88% with the criteria of "Very Good"

PEMBELAJARAN DI SEKOLAH SEBAGAI WAHANA PENGEMBANGAN KARAKTER PERSERTA DIDIK

The character is always up to date to be discussed and it is necessary to continue to be discussed in order to develop the character of the students in particular and the nation in general. Low of character of learners will result in low quality of the nation in the future, otherwise the strength of character of the learners are expected to affect the progress of the nation and the state. Up to now there are many phenomena of lawlessness, including criminal events that do learners caused low character. Character development must get the attention of all parties, especially the world of education. A person's character is not permanent, the characters can be changed and developed. Education is becoming a tools for the right to develop the character of students. Each subject in the school should be used as a media to develop the character in addition to developing intellectual. For this purpose, an educator is required to have the ability to carry out learning that is able to develop the character of their students through the subject matter, also through the example of daily life, especially at school.  

KOMPOS LIMBAH NANAS UNTUK MENINGKATKAN PERTUMBUHAN CABAI PAPRIKA

Pepper cultivation has not been maximally empowered by the community because paprika chili will grow well at a temperature of 210C degrees Celsius to a temperature of 270C. This study aims to determine the effect of using compost and pumakal liquid fertilizer from pineapple waste on the growth of paprika chili from the results of article review. This research is a qualitative research with several articles related to the effect of liquid waste on the growth of paprika plants. Results Based on the research that has been done, there is a significant effect of using compost and pumacal liquid fertilizer from pineapple waste on the growth of chili peppers