Using Project-Based Learning To Design, Build, and Test Student-Made Photometer by Measuring the Unknown Concentration of Colored Substances

Diawati, Chansyanah; Liliasari,; Setiabudi, Agus; Buchari,

doi:10.1021/acs.jchemed.7b00254

Cited by 34 publications

(37 citation statements)

References 38 publications

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“…On the other hand, through this activity students will get used to working together in groups so that it will foster a disciplined, honest, and thorough attitude in conducting learning activities and group discussions. Diawati et al (2018) suggest that when students are assigned to work on worksheets and undertake learning activities and group discussions, students practice working together between group members to discuss the tasks contained in worksheets. Through this group discussion, students exchange opinions, assess the views of friends regarding problems correctly.…”

Section: Q: Find Information On Types Of Drinks Ormentioning

confidence: 99%

“…As a problem solver, knowledge alone is not enough to deal with increasingly complex problems in the current disruptive era. The contemporary job market demands the production of someone who can work in a disruptive and illdefined environment, face non-routine and abstract work processes, make decisions, take responsibility, and work in teams (Van den Bergh et al, 2006;Baygin et al, 2016;Diawati et al, 2017;Diawati et al, 2018;Fadiawati, Diawati, and Syamsuri, 2019). This ability is related to skills demanded in the 21st century, one of which is critical thinking skills (CTS).…”

Section: Introductionmentioning

confidence: 99%

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Using Problem-Based Learning to Improve Students Critical Thinking Skills to Deal Hoax Information in Chemistry

Fadiawati¹,

Diawati²,

Syamsuri³

2020

PTQ

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Critical thinking is the ability to think rationally and reflectively about what must be done or believed. This skill allows one to make logical decisions based on information obtained and processed according to ability. The development of critical thinking skills in learning is essential because they enable students to deal effectively with social, scientific, and practical problems. Therefore, this research aimed to describe the effectivity of problem-based learning to improve students’ critical thinking skills to deal with hoax information in chemistry. This research was carried out through the control and experimental groups. Data were collected from 60 the 11th-grade students of the State High School in Lampung Province, Indonesia, and analyzed by using SPSS version 23.0. The effectivity of problem-based learning was measured based on the n-gain. The n-gain value of experimental and control classes was 0.709 (high) and 0.322 (medium), respectively. The results indicated that problem-based learning has facilitated and effective to improve students’ critical thinking skills.

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Section: Q: Find Information On Types Of Drinks Ormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Using Problem-Based Learning to Improve Students Critical Thinking Skills to Deal Hoax Information in Chemistry

Fadiawati¹,

Diawati²,

Syamsuri³

2020

PTQ

Self Cite

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“…Nowadays, students are demanded to work in different environments where higher-level thinking skills are required. Hence, problem-based learning (PBL) has been a longstanding educational approach that allows them to acquire new concepts to solve problems critically and work more independently [1,2].…”

Section: Introductionmentioning

confidence: 99%

A Way to Understand the Solid-State Chemistry for High Level Education Students: The Case of a Ceramic Pigment

Torresi¹,

Bou-Gil²,

D'Anna³

et al. 2020

EDULEARN Proceedings

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The design of undergraduate laboratory sessions that provide meaningful research-based experiences enhances undergraduate curricula and prepares future graduate students for research careers. Solid State Chemistry has attracted the attention of many fields due to its wealthy chemistry as well as the versatility of its applications. Among the wide fields in this area, the study of an inorganic ceramic pigment has been selected in this experience. A ceramic pigment can be defined as a colored inorganic solid, black, white or fluorescent, normally insoluble and practically unaffected neither chemically or physically by the vehicle or substrate in which it is incorporated. From a structural point of view, a ceramic pigment is formed by a host network where the chromophore component, usually transition ions, generates the color without producing a change in the structure. A suitable host network must have, in addition to a high chemical resistance against oxidation and reduction and a high melting point, energy differences between favorable bands to allow the chromophore to produce colors in the region of the visible spectrum. A teaching strategy has been proposed for undergraduate chemistry students, introducing them to the solid-solid reaction by the synthesis of a pink ceramic pigment based on chromium doped ZnAl2O4 with spinel structure. The as-prepared pigment has been characterized by two different techniques, such as X-Ray Diffraction and UV-Vis spectroscopy, commonly used in Solid-State Chemistry. In this way, students will have a first approach to the basic concepts of the Solid-State Chemistry through simple laboratory sessions. Due to the simplicity and easy strategy used in this study, the students will be able to participate actively, fulfilling the pedagogical character demanded by a Problem Based Learning.

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“…It is a fact we belong to a globalized world, where graduated students are demanded to work in different environments in which higher-level thinking skills are required. Hence, problem-based learning (PBL) is a longstanding educational approach that allows students to acquire new concepts to resolve problems critically and work more independently [1,2].…”

Section: Introductionmentioning

confidence: 99%

Optical Smoke Detector: An Approach to Semiconductors Field for High Level Education Students

Porcar-García¹,

González-Cuadra²,

Mateu³

et al. 2019

EDULEARN Proceedings

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Nowadays, it is undeniable that the amount of technological devices is having a sharp increase all around us, with important benefits and repercussions for the society. Despite this, students are not used to knowing the basic principles of its operations. Hence, it is of utmost importance to approach undergraduate students to a practical example of a device they can find in their daily life. It is a fact that science is interconnected with multiple disciplines, such as Physics and Solid State Chemistry, Materials Science and Engineering. A good example of it is a smoke detector because it combines both optical and electrical behaviour. Such a device contains a chamber inside which there is an infrared LED (light-emitting diode) and a photodiode (light detector). According to the principle of light scattering, when the smoke interrupts the path of light, it will scatter a fraction of light into the photodiode, activating the detector. Thus, detecting low levels of smoke is vital for preventing the fire expansion and occupants can get more time to escape from the premises. The main purpose of this work is to help students to understand the work mechanism of the LED and photodiode in basis of their material composition. In order to do that, a smoke detector is disassembled and its different parts are observed. After that, the microstructure and composition of them are fully analysed by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) techniques. With these experiments, students have gained knowledge about semiconductors materials and got a more accurate understanding of their role in these devices. This experience has allowed them to keep in contact during the whole study with three main concepts of Materials Science: composition, structure and properties. This fact make the work interesting not only from the point of view of students, but also for teachers of Inorganic Chemistry and Materials Science owing to its pedagogical character employing a Problem-Based Learning (PBL).

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Using Project-Based Learning To Design, Build, and Test Student-Made Photometer by Measuring the Unknown Concentration of Colored Substances

Cited by 34 publications

References 38 publications

Using Problem-Based Learning to Improve Students Critical Thinking Skills to Deal Hoax Information in Chemistry

Using Problem-Based Learning to Improve Students Critical Thinking Skills to Deal Hoax Information in Chemistry

A Way to Understand the Solid-State Chemistry for High Level Education Students: The Case of a Ceramic Pigment

Optical Smoke Detector: An Approach to Semiconductors Field for High Level Education Students

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