Digital Experiments in Higher Education—A “How to” and “How It Went” for an Interactive Experiment Lecture on Dental Materials

A digital lecture with motivating experiments—how can this be done in practice? This question shall be answered in the context of a case report from the field of material science. A digital experimental lecture as a substitute for a lecture with student experiments was evaluated by students to provide information on whether an adequate substitute for experiments in the digital teaching context is possible. This paper addresses the question of how to transfer a demonstrative experimental lecture to the digital space on two levels: (a) the procedure of an experimental lecture in the digital space with a focus on implementation, student activation, and audience response. A self-reflective assessment by the lecturer/author and an evaluation by the participating students was performed to judge the suitability of the digital experimental lecture in terms of students’ motivation. (b) Subject-specific experiments from the field of dental materials and their transfer from “students do it themselves” to a series of demonstration experiments. The detailed explanations of the procedure and the observed results shall serve as a basis for adaptation for other experiments or lectures. In conclusion, methods and tools (audience response systems such as joined blackboards, chat, and voting) suitable to activate students in partaking in the lecture by suggesting experimental parameters or speculating on the outcome of experiments are presented. The evaluation showed that with the help of these systems a demonstrative experimental lecture in the digital space can still be perceived as adequate experimentation if a certain student influence and animating approach to the audience is integrated, which might result in the students’ conclusion of, “It felt like you were “live” on site.”.

Contribution of laboratory-experimental method to the quality of students knowledge

The aim of the paper is to analyze the contribution of the laboratory-experimental method (LEM) to the quality of students' knowledge of natural and inaccessible research. Papers were also selected to examine the comparative contribution to the quality of students' knowledge: LEM and other learning methods, that is, between student and demonstration experiments. Most of the research so far is focused on subject teaching and they are still rare in integrated science teaching. The research confirms the greater contribution of LEM than the traditional and other methods of learning about quality and durability of students' knowledge. Student experiments in most research contribute to the quality of students' knowledge more than the demonstration experiments. There is insufficient research which examines the impact of LEM on students' quality of knowledge at cognitive levels. In the teaching of most of the contents of natural science, priority should be given to the LEM method or it should be combined with other methods of learning.

PENGAMATAN CAHAYA MATAHARI UNTUK MENENTUKAN JARI-JARI BUMI: SUBUAH EKSPERIMEN PADA MATAKULIAH FISIKA KEBUMIAN LANJUT

In Advanced Earth Physics courses, one of the topics discussed is the characteristics of the earth. One of the topic deals with how to measure the radius of the earth. The purpose of this study is to provide an experiment for students so they can understand how to measure the radius of the earth. A simple but accurate method for measuring the radius of the Earth using a video camera is explained in this study. A demonstration is given to students. Then students were requaired to make their own observations and calculate the radius of the earth obtained from each experiment. The results of student experiments show that the radius of the earth is 6243.94 km with a standard deviation of 14.70 km. The average results of these 35 students are within 1.9% of the average value of the earth's radius which is currently accepted at 6371 km. This experiment is very useful in giving students a good understanding so they understand how to determine the radius of the earth.

Penerapan Model Pembelajaran Kooperatif untuk Meningkatkan Keterampilan Proses Merencanakan Eksperimen dan Hasil Belajar PKn di SMK Negeri 1 Sakra Tahun Pelajaran 2018/2019

The background of this study is the incomplete learning outcomes of X.b grade students of SMK Negeri 1 Sakra in the 2018/2019 Academic Year. To solve these problems by applying cooperative learning models in the learning process. This type of research is conducted by PTK (Class Action Research), which is a study in a classroom at a school with an emphasis on the improvement and improvement of learning processes and practices. Data collection techniques used were interviews, observation, use of tests, demonstrations. Data analysis techniques in this study used the analysis of the level of process skills in planning student experiments, scoring.