The people of Timor Island only know garlic as a kitchen spice. This research provides new knowledge of the benefits of garlic in the health sector, especially as an inhibitor of free radical that can trigger various degenerative diseases. The aims of this research were to identify secondary metabolites contained in the ethanolic extract of garlic (Allium sativum L.) from Timor Island and to determine its effectiveness in inhibiting free radicals. The method used to test secondary metabolites was phytochemical screening using color reagents. Testing the effectiveness of free radical inhibitors from garlic ethanol extract from Timor Island was carried out in 2 stages: 1.) Determination of DPPH maximum wavelength (λ) and 2.) Measurement of antioxidant activity using DPPH method. The results showed that the ethanolic extract of garlic from Timor Island contained secondary metabolites of flavonoids, phenols and terpenoids. It was also very effective in inhibiting free radicals, with the acquisition of IC50 values <50 ppm which was equal to 9.729 ppm. This research gives some information that can be used for the pharmacological ingredients, i.e. as a natural medicine that safe for the body to be consumed by the people of Timor Island. Moreover that also can impact on demand of garlic in the market. This has a very positive impact on improving the economy of garlic farmers on Timor Island.

The purpose of this research is to develop an acid-base device that integrates ARCS motivation strategies in problem-solving learning models of scientific attitudes and critical thinking skills of students. The development of this device uses a 4-D model, but in this study, due to the limited time, the development of the device only reached the development stage and was tested on Biology Education Study Program students in semester 2 with a one-group pretest-posttest design. Data collection techniques used are validation, tests, and questionnaires. Data were analyzed using SPSS and the Likert scale. The results showed the validity of the Semester Lesson Plan obtained a rcount of 0.690, valid category. Student Worksheet obtained rcount value of 0.748 valid categories. Learning Outcomes Test obtained, rcount of 0.701, with a valid category. The percentage of Lesson Plan implementation is on a scale of 4 with a good category. The results of the N-Gain Score test in the productive class is 78.58% effective category while the N-Gain Score in the trial class is 70.14% and is included in the quite effective category. The data shows that learning using ARCS motivation strategies in problem-solving learning models can improve student learning outcomes.

This study aims to determine: (1) to identify the structure of ngadhu and bhaga in Ubedoulumolo Village of Ngada District. (2) Explain the relation of ngadhu and bhaga to mathematics learning in school. The research method used is qualitative with an ethnographic approach. The subjects of this study consisted of three informants (pengu chief, and traditional elders of pengu and gelo tribe). Using observation and interview techniques, supported by documentation, and using qualitative descriptive analysis. The results of the study showed ngadhu and bhaga has related to mathematics, that is the geometry concept. The geometry concept found in ngadhu is: (1) pole ngadhu (made of sebu tree) in the form of a tube; (2) base of ngadhu is composed of a stone in a circle; (3) the roof of ngadhu (material of reeds and palm fibre) in the shape of a cone; (4) bhenga (2 roof support posts) in the form of a beam; (5) mangu (NOK pole) shaped beam; (6) sobhe (head ngadhu made of bamboo) shaped tube; (7) paja (roof truss of bamboo) formed triangle, rectangles, trapezoid. The geometry concept in the bhaga building are: (1) bhaga in the form of the beam; (2) roof (made of reeds) in the shape of a trapezoid and triangular prism; (3) pole shape of beams and tubes; (4) Ube (wall made of plank wood fai) shape of the rectangle; (5) Dawu (arranged boards) with carvings in the form of circles and triangle; (6) Soku bhotha and soku wi’i ( as a roof truss made of bamboo) shape tube rectangle, square and triangle. Geometry forms that exist in the ngadhu and bhaga in the Ubedolumolo Village are lines, angles, triangle, square, rectangle, trapezoid, circle, beam. Tube, cone and triangular prism.

Solution material is one of the materials that requires a student's level of understanding at the critical thinking level. Critical thinking skills train students to learn to find and solve problems using scientific methods based on real experiences encountered and experienced directly. To be able to find the concept of knowledge based on existing realities, an appropriate learning model is needed, namely a problem-based learning model. This study aims to determine students' critical thinking skills. The type and design of this research is development research with a nonequivalent control group design. The samples of this research were students of semester 2, Biology Education Study Program, University of Flores. This research was conducted from April-June 2020. Data were collected using the critical thinking ability test technique of students in the chemical solution subject, followed by processing and analyzing data using the prerequisite analysis test in the form of normality test, homogeneity test, and t-test. The data analysis shows the significance value of the normality and homogeneity test, namely α> 0.05, while for the t-test α <0.05. From these results prove that problem-based learning can improve students' critical thinking skills in chemistry subject matter solution

The research aim is to observe the profile and description of the character education patternquality in senior high school students.The study was conducted in six Senior high schools of Ende city consisting of: State Senior high school 1 of Ende; State Senior high school 2 of Ende; Muhammadiyah Senior high school of Ende; Mudmainah Senior high school of Ende; Catholic Senior high school St. Petrus of Ende; specifically class X of social science, with a sample of 300 students. Data collection methods used were questionnaires and interviews, and then analyzed using qualitative and quantitative descriptive analysis. The results showed that the profile and description of the pluralism character education patterns quality in six senior high schools of Ende city were very good category with intervals value of 80-100 %. The data shows that the quality of pluralism character education patterns is very good, with the pluralism character education pattern applied to senior high school students through exemplary teacher, religious approach, individual, and nationality.Tujuan dari penelitian adalah mengetahui profil dan deskripsi mutu pola pendidikan karakter siswa SMA. Penelitian ini dilakukandienamSekolahMenengahAtas(SMA) sekota Endeyang terdiridari:SMAN 1Ende;SMAN2 Ende;SMA MuhamadiyahEnde;SMA Mudmainah Ende; SMAKSt. Petrus Ende;danSMASAlsiora Endekelas X IPS dengan sampel 300 siswa. Teknik pengumpulan data dalam penelitian ini adalah angket dan wawancara, yang kemudiandianalisis menggunakananalisis deskriptif kualitatif dan kuantitatif. Hasil penelitian menunjukkan bahwa profil dan deskripsi mutu pola pendidikan karakter pluralisme pada enam SMA di kota Ende berada pada kategori sangat baik dengan interval persentase 80-100%. Data ini menunjukkan bahwa mutu pola pendidikan karakter pluralisme sangat baik, dengan pola pendidikan karakter pluralisme yang diterapkan pada siswa SMA yakni melalui keteladanan guru, pendekatan religius, individu, dan kebangsaan.