The ability to think creatively is part of the affective domain that also determines the success of learning. The researcher intends to conduct developmental research to produce a viable creative thinking tool. So that it can be used as a tool to assess students' creative thinking ability. This research is a development research or Research and Development (R&D) with the 4D model, namely Define, Design, Develop and Disseminate. In this study, it was only performed up to the development phase, namely expert validation and practitioner validation. The tools developed were descriptive questions. The sample used were class X high school students. Based on the expert validator's rating, the demand for creative thinking averaged 3.25 in all aspects with a very good category and a content validation value of 0.71 in the valid category. Meanwhile, the practitioner validator rating achieved the feasibility of the mean value of all aspects of 3.71 with the very good category and the content validation of 0.89 with the valid category. Thus, it can be concluded that the creative thinking assessment tool is suitable to be used to measure students' creative thinking level

NTB is one of the provinces that experienced significant economic growth. In 2017 the economic growth of NTB Province reached 7.1% from 5.6% of national economic growth. Of course this comes from various fields, one of which is the agricultural sector, namely processed products of water sap (palm sugar). The NTB sugar production center is a national superior product commodity with good production quality (NTB in Figures, 2018). One of the villages which is a commodity of palm sugar is Kekait Daye Hamlet. However, this condition is not supported by the earthquake during August-September 2018 which caused the economic paralysis in NTB. The purchasing power of the people has decreased dramatically, the production process of processed products for the people must be stopped and even out of business. So that it causes the production process to weaken because people have to lose production sites and equipment in the manufacture. Plus the products produced are still in the form of general products such as ant sugar and briquette sugar which if sold have prices that are not too high while on the one hand there needs to be innovation to improve the economy of the community. So the researchers made an innovation in the diversification of processed water sap products that have high economic value. This research aims to create processed products of water diversified sap which have high economic value, good packaging and good quality. The method of this research starts from the preparation of tools and materials, making products and socializing to the public. The results of the study were the creation of a diversified process of palm water products in the form of palm sugar, palm coffee , and sugar palm chocolate. Keywords: diversification, economic, kekait, palm

ABSTRAKPenelitian ini bertujuan untuk mengetahui kelayakan instrumen kemampuan berpikir kreatif  dengan menggunakan model pembelajaran kausalitik untuk mrngukur tingkat kemampuan berpikir kreatif momentum dan impuls peserta didik. Jenis penelitian ini termasuk penelitian dan pengembangan (Research and Development), dengan desain menggunakan model 4D. Prosedur penelitian yang dilakukan dalam mengacu pada langkah-langkah pengembangan model 4D yaitu define, design, develop, dan disseminate. Namun pada penelitian ini hanya dilakukan sampai pada tahap develop. Perangkat pembelajaran model kausalitik untuk mengukur tingkat kemampuan berpikir kreatif momentum dan impuls peserta didik berupa instrumen tes kemampuan berpikir kreatif (KBK). Pengumpulan data dilakukan melalui validasi perangkat pembelajaran oleh validator. Hasil validasi instrument kemampuan berpikir kreatif  mencapai rata-rata nilai validitas 88,02% dengan kriteria sangat valid. Sedangkan rata-rata nilai realibilatasnya adalah 92.04%. Berdasarkan hasil tersebut, dapat disimpulkan bahwa instrumen kemampuan berpikir kreatif model kausalitik untuk mengukur tingkat kemampuan berpikir kreatif momentum dan impuls peserta didik layak dalam pembelajaran Kata kunci: model pembelajaran kausalitik; kemampuan berpikir kreatif; momentum dan impuls ABSTRACTThis research aims to determine the feasibility of the creative thinking ability instrument using a causality learning model to measure students' level of momentum and impulse creative thinking ability. This type of research is a research and development study using a 4D model design. The research followed the 4D development model steps, which are defined, designed, develop, and disseminated, but only until this research's development stage. The causality learning model tool to measure students' level of momentum and impulse creative thinking ability is an innovative thinking ability test (KBK) instrument. Data was collected through the validation of the learning tool by a validator. The results of the creative thinking ability instrument validation showed an average validity score of 88.02% with the criteria being very valid. Meanwhile, the average reliability score was 92.04%. Based on these results, it can be concluded that the causality learning model instrument to measure students' momentum and impulse creative thinking ability is feasible in learning. Keywords: causality learning model; creative thinking ability; momentum and impulse

This research aims to examine the effect of the thickness of coconut shell composite board on elasticity, sound absorption, water absorption, and density. The elasticity test was conducted using the tensilon RTF2350 machine at the Faculty of Mechanical Engineering and the sound absorption test was conducted using the sound level meter GM1352 at the Faculty of Science and Mathematics of the State University of Yogyakarta. The thickness of the composite board was varied, and its elasticity was measured using the tensilon RTF2350 machine, the sound absorption measurement was determined using a sound level meter with a sound source from a sound generator with a frequency of 1000Hz and intensity of 20 dB, while the thickness was varied. The elastic modulus decreased with the increase in partition thickness, sound absorption decreased with the increase in partition thickness, and water absorption increased with the increase in partition thickness. Water absorption was determined by submerging the partition into distilled water for 30 seconds and observing the mass before and after immersion into the water.