scholarly journals Testing homes for potential sources of lead exposure as a high‐school science project

GeoHealth ◽  
2021 ◽  
Author(s):  
Evan Sefchick ◽  
Daniel Dusevic ◽  
Jack Dougherty ◽  
Andrew Terraciano ◽  
Tyler Ellis ◽  
...  
2021 ◽  
Author(s):  
Evan Evan Sefchick ◽  
Daniel Dusevic ◽  
Jack Richard Dougherty ◽  
Andrew Terraciano ◽  
Tyler Ellis ◽  
...  

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Wayan Sadia

Abstract This research was conducted with the main objective to develop a model of character education integrated with science learning in elementary, junior, and senior high schools. The research was focused on the needs analysis study involving 36 elementary school science teachers, 34 junior high school science teachers and 27 senior high school science teachers to collect information on science learning in relation to character education. Data were collected by questionnaires, observation and interviewing techniques. Data were analyzed by descriptive and qualitative meaning. The results showed that: 1) character education can be developed through selection of science learning model, assessment model, and teaching materials, 2) science learning models that contribute significantly to the development of the character of students are inquiry learning, problem-based learning, cooperative learning , science-technology-society, problem solving, and contextual learning models, 3) science teacher’s responses to the character education are generally very positive and seek to develop good character through a learning process, 4) some (55.3%) science teachers include indicators of character values that to be target of learning in the syllabus and lesson plans, and some (44.7%) do not explicitly specify its, but implicitly implied in the syllabus and lesson plans. Keywords: character education, integrated science learning


Author(s):  
Timma Dormauli Siallagan ◽  
Syamsurizal Syamsurizal ◽  
Bambang Hariyadi

The purpose of this developmental research was to develop a scientific approach based science worksheet on the dynamic electrical material topic for ninth-grade junior high school students.  The worksheet were developed based on scientific approach. The stages include:  observing, asking questions, gathering information, processing information, and communicating. The development model used is the 4-D Model consists of 4 stages: define,  design, develop, and desimanate. The results of the validation, a small and large group trials indicated that the used of the scientific approach based science worksheet was appropriate for use. Thus, the developed worksheets can be used in the process of learning for Junior high school science students. Keywords : Worksheet , Scientific approach


2021 ◽  
pp. 073563312110015
Author(s):  
Ting-Ling Lai ◽  
You-Sheng Lin ◽  
Chi-Yin Chou ◽  
Hsiu-Ping Yueh

The study aims to evaluate the effectiveness of an inquiry-based virtual reality (VR) science lab used in junior high school science classes. The Scientific Investigation VR Lab (SIVRLAB) is designed for 9th-grade students to learn about electrochemical cells. It is situated in a guided problem-solving context, where learners need to review the concept of oxidation-reduction reactions and assemble a voltaic cell to save a robot. The SIVRLAB features several cognitive supports and guides for students to plan and record experiments and resolve the problem. It has both a head-mounted display (HMD) version and a desktop VR version. The study recruited 66 9th graders from three classes to evaluate the two versions of the SIVRLAB. The students were assigned to one of three conditions, namely, (1) using immersive HMD SIVRLAB individually, (2) using desktop SIVRLAB individually, and (3) observing one student use immersive HMD SIVRLAB. The students were briefly introduced to the concept of electrochemical cells in the first class and were instructed to use the SIVRLAB sessions in the next class. The results from knowledge pre- and post-tests, a user experience survey, and students’ reflections were collected and analyzed qualitatively. The findings revealed that students who used the desktop VR obtained the highest test scores among the three groups. However, in the follow-up physical laboratory test, the performance of the students in the original HMD VR experimental group was better than those in the desktop VR experimental group. The paper also discusses student feedback and teacher observations regarding the design and interaction with immersive VR. Lastly, the implications of the study and recommendations for future studies are presented.


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