scholarly journals Exploring Effects of Science-Technology-Society Instructional Approach as an Innovation in Improving Learners’ Interest in Chemistry

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Benson Ikechukwu Igboanugo
Keyword(s):  
Treatment Group ◽  
Education Programme ◽  
Control Group ◽  
Instructional Approach ◽  
Control Group Design ◽  
Chemistry Instruction ◽  
Science Technology Society ◽  
Science Technology ◽  
Significant Difference ◽  
Research Questions

Continuous dwindling in learners’ interest in chemistry is a threat to global development. The abstract nature of chemistry and other factors are capable of damping the interest of the learner during instruction which can mar the realization aims and objectives of chemistry instruction.  The learning environment is shaped by the instructional approaches adopted by the teacher. Thus, the use of innovative instructional approach capable of making the learning experiences relevant to the learner, build and sustain the interest in the learner during chemistry instruction becomes very imperative. This study investigated Science-technology-society (STS) instructional approach as an innovation in improving learners’ interest in chemistry. The study was conducted using senior secondary school 2 chemistry learners in Onitsha Education zone of Anambra state, South-East of Nigeria. The study adopted quasi experimental design of the pretest posttest non equivalent control group design. Two research questions and two hypotheses guided the study. Three hundred and ten students from purposively sampled twelve coeducational public secondary schools were used for the study. Six schools were randomly assigned to the treatment group while the remaining six assigned to the control group. The treatment group was taught electrolysis using Science-technology-society instructional approach while the control group was taught the electrolysis using the conventional instructional approach. Validated Chemistry Interest Inventory (CII) was used to collect data for the study. The CII had reliability index of 0.93. The mean score and standard deviation were used to answer the research questions while analysis of variance (ANCOVA) was used to test the hypotheses at 0.05 level of confidence. The study revealed among other things that there was significant difference in the interest mean scores of learners taught chemistry using Science-technology-society instructional approach and those taught chemistry using conventional instructional approach. From the findings of the study, the following recommendations among others were made: Chemistry teachers should adopt STS instructional approach in teaching and learning chemistry and use of STS instructional approach should included in chemistry teacher education programme

scholarly journals PENGARUH MODEL PEMBELAJARAN SAINS TEKNOLOGI MASYARAKAT TERHADAP KEMAMPUAN BERPIKIR KRITIS DAN SIKAP ILMIAH PADA SISWA KELAS VIII SMP NEGERI 2 KUBU

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
LUH PUTU PURNAMA DEWI . ◽  
PROF. DR. I WAYAN SANTYASA, M.Si. . ◽  
DR. I MADE KIRNA, M.Si. .
Keyword(s):  
Critical Thinking ◽  
Thinking Skills ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Science Technology Society ◽  
Science Technology ◽  
Significant Difference ◽  
The Difference ◽  
Scientific Attitudes

Penelitian ini bertujuan mendeskripsikan (1) perbedaan kemampuan berpikir kritis (KBK) dan sikap ilmiah (SI) antara siswa yang belajar dengan model pembelajaran STM dan yang belajar dengan model pembelajaran langsung (PL) setelah perlakuan dikontrol dengan kemampuan berpikir kritis (KBKA) awal dan sikap ilmiah awal (SIA), (2) perbedaan KBK antara siswa yang belajar dengan model pembelajaran STM dan yang belajar dengan model PL setelah perlakuan dikontrol dengan KBKA dan SIA, (3) perbedaan SI antara siswa yang belajar dengan model pembelajaran STM dan yang belajar dengan model PL setelah perlakuan dikontrol dengan KBKA dan SIA. Penelitian eksperimen semu ini menggunakan non-equivalent pretest posttest control group design. Populasinya adalah 8 kelas siswa kelas VIII SMP Negeri 2 Kubu Tahun Pelajaran 2016/2017 dengan jumlah siswa 252 orang. Sampel penelitian dipilih secara simple random untuk menentukan 2 kelas, yang selanjutnya dirandom kembali untuk menentukan 1 kelas sebagai kelompok eksperimen menggunakan pembelajaran STM dan yang lain pembelajaran PL. Data KBK dikumpulkan dengan tes dan data SI dengan kuesioner baik di awal maupun di akhir eksperimen. Data dianalisis menggunakan statistik deskriptif dan MANCOVA. Setelah perlakuan dikontrol dengan KBKA dan SIA, hasil penelitian menunjukkan temuan-temuan sebagai berikut. (1) Terdapat perbedaan secara signifikan KBK dan SI antara siswa yang belajar dengan model pembelajaran STM dan yang belajar dengan model PL. KBK dan SI siswa yang belajar dengan pembelajaran STM lebih tinggi dibandingkan dengan yang beljar dengan model PL. (2) Terdapat perbedaan KBK antara siswa yang belajar dengan model pembelajaran STM dan yang belajar dengan model PL. KBK siswa yang belajar dengan pembelajaran STM lebih tinggi dibandingkan dengan yang beljar dengan model PL. (3) Terdapat perbedaan SI antara siswa yang belajar dengan model pembelajaran STM dan siswa yang belajar dengan model. SI siswa yang belajar dengan pembelajaran STM lebih tinggi dibandingkan dengan yang beljar dengan model PL.Kata Kunci : Model Sains Teknologi Masyarakat, Kemampuan Berpikir Kritis, Sikap Imiah This study aims at describing 1) the difference of both students’ critical thinking skill (CTS) and their scientific attitudes (SA) between them learned in the Science-Technology-Society (STS) model and in Direct Instructional (DI) model after the treatment was controlled by both prior CTS and early SA, 2) the difference of students’ CTS between them learned in the STS and in the DI models after the treatment was controlled by both prior CTS and early SA, and 3) the difference of students’ SA between them learned in the STS and in the DI models after the treatment was cnotrolled by both prior CTS and early SA. This quasi experiment used non-equivalent pretest posttest control group design. The population of the study was 8 classes of eight grade students of SMP Negeri 2 Kubu in the academic year 2016/2017 which comprised of 252 students. The samples of 2 classes were choosen by simple random sampling to determent the first class as an experiment group utilized STS and the othe one used DI models. The data of CTS was collected by test and the data of SA by questionnaire. To analyze of the data, the descriptive and the MANCOVA statistics were used. To test the hypothesis, a significant level of 5% was utilized. After the treatment was cotrolled by both prior CTS and early SA,the results of the study were aas follows. (1) There is a significant difference both CTS and SA between students learned in the STS and them the DI models. Both CTS and SA of students learned in the STS is higher than them in the DI models. (2) There is a significant difference CTS between students learned in the STS and them the DI models. The CTS of students learned in the STS is higher than them in the DI models. 3) There is a significant difference SA between students learned in the STS and them the DI models. The SA of students learned in the STS is higher than them in the DI models.keyword : Science technology society learning model, critical thinking skills and scientific attitudes

scholarly journals Anti-Inflammatory Effect of Musa acuminata Stem

2020 ◽  
Vol 14 (02) ◽  
pp. 294-298
Author(s):  
Maharani Laillyza Apriasari ◽  
Selviana Rizky Pramitha ◽  
Dewi Puspitasari ◽  
Diah Savitri Ernawati
Keyword(s):  
Treatment Group ◽  
Musa Acuminata ◽  
Control Group ◽  
Control Group Design ◽  
Treatment Groups ◽  
Tnf Α ◽  
Significant Difference ◽  
Anti Inflammatory ◽  
Mucosal Wound ◽  
Inflammatory Effect

Abstract Objective This study was designed to assess the anti-inflammatory effect of Musa acuminata through the expression of tumor necrosis factor-α (TNF-α) and nuclear factor kappa β (NF-κB) after 3 days of application of Musa acuminata stem extract (MASE) gel on oral mucosal wound. Materials and Methods An experimental study with post-test only control group design was conducted. Twenty male Rattus norvegicus (Wistar) were injured on their left buccal mucosa and treated three times a day with MASE gel of varying concentrations: 0% (as control), MASE 25%, MASE 37.5%, and MASE 50%. On day 3, a biopsy was performed on each mucosal wound for later immunohistochemical analysis for the expressions of TNF-α and NF-κB. Results The highest expression of TNF-α was observed in the control group (13.20 ± 1.79), while the lowest was in the treatment group using 50% MASE (6.40 ± 1.14). Meanwhile the comparison between treatment groups did not highlight any significant difference (p > 0.05). The highest expression of NF-κB was observed in the control group (13.20 ± 1.30), whereas the lowest was in the treatment group using MASE 50% (6.40 ± 1.14). NF-κB was significantly lower in the treatment group using MASE 50% when compared with other treatment groups (p < 0.05). Conclusion Application of MASE on mucosal wound reduces the expression of TNF-α and NF-κB at all concentrations. The anti-inflammatory effect of MASE 50% was the strongest one.

scholarly journals Pengaruh suplementasi Zn terhadap perubahan indeks TB/U anak stunted usia 24-36 bulan

2017 ◽  
Vol 5 (2) ◽  
pp. 98-104
Author(s):  
Dewi Pertiwi Dyah Kusudaryati ◽  
Siti Fatimah Muis ◽  
Laksmi Widajanti
Keyword(s):  
Treatment Group ◽  
Dietary Intake ◽  
Child Growth ◽  
Control Group ◽  
Control Group Design ◽  
Dietary Allowance ◽  
Significant Difference ◽  
Before And After ◽  
And Control ◽  
Height For Age

Background : Zn supplementation on stunted children in multiple research get the result inconsistent concerning the effect of Zn on children’s growth.Objective : To examine the effect of Zn supplementation to the change in height for index among stunted children age between 24-36 months.Methods: The research design is randomized pretest posttest control group design. The total of thirty six stunted children are divided into two groups. The treatment group is received syrup with 20 mg ZnSO4 twice a week for three months. The control group received placebo without Zn. Height for age z score (HAZ) on WHO Child Growth 2006 is used to measure height for age index while dietary intake and infection diseases are used as confounding variables.Result : There is significant difference in HAZ before and after supplementation at treatment group (p<0.001) and control group (p<0.001). There is a significant difference of the change in HAZ between the treatment group and control group (p=0.006). Percentage Achievement of Energy, Protein, and Zn Dietary Allowance have significant difference between the treatment group and control group (p=0.009; p<0.001; p<0.001, respectively). The change in HAZ, Percentage Achievement of Energy, Protein, and Zn Dietary Allowance are higher in treatment group than control group. Duration of diarrhea (p=0.045) and morbidity (p=0.019) are lower in treatment group than control group. Conclusion : Zn Supplementation among stunted children have significant effect on the change in HAZ, dietary intake, and infection.

Card Games and Algebra Tic Tacmatics on Achievement of Junior Secondary II Students in Algebraic Expressions

2016 ◽  
Vol 5 (2) ◽  
pp. 93 ◽  
Author(s):  
Okpube Nnaemeka Michael ◽  
N. M. Anugwo
Keyword(s):  
Control Group ◽  
Control Group Design ◽  
Algebraic Expressions ◽  
Card Games ◽  
Lecture Method ◽  
Junior Secondary ◽  
Significant Difference ◽  
Research Questions ◽  
Measurement And Evaluation ◽  
And Algebra

This study investigated the Card Games and Algebra tic-Tacmatics on Junior Secondary II Students’ Achievement in Algebraic Expressions. Three research questions and three null hypotheses guided the study. The study adopted the pre-test, post-test control group design. A total of two hundred and forty (240) Junior Secondary School II students were used as sample for this study. The experimental group was taught using games while the control group was taught using the conventional (lecture) method. Algebraic Achievement Test (AAT) was used to collect data for this study. AAT was validated by three experts in mathematics education and measurement and evaluation respectively. The reliability index of AAT was 0.79. Mean and standard deviation were used to answer the research questions while ANCOVA was used to test the hypotheses at 0.05 level of significance. The findings of the study showed among others that there was a significant difference between students taught algebraic expressions with games and those taught without games, there was also a significant difference between the achievement of males and females taught algebraic expressions with games and those taught without games in favour of the males.

scholarly journals Antibacterial Activity of Lumbricus Rubellus Earthworm Extract Against Porphyromonas Gingivalis as the Bacterial Cause of Periodontitis

2019 ◽  
Vol 7 (6) ◽  
pp. 1032-1036 ◽  
Author(s):  
I Gusti Agung Ayu Dharmawati ◽  
Tjokorda Gde Bagus Mahadewa ◽  
I Putu Eka Widyadharma
Keyword(s):  
Antibacterial Activity ◽  
Treatment Group ◽  
Lumbricus Rubellus ◽  
Control Group ◽  
Inhibitory Zone ◽  
Control Group Design ◽  
Zone Diameter ◽  
Significant Difference ◽  
The Mean

AIM: The purpose of this study was to determine the antibacterial activity of Lumbricus rubellus earthworms through inhibitory zone diameter to the growth of the bacterium Phorphyromonas gingivalis as the cause of periodontitis. METHODS: This was an experimental study with randomised posttest-only control group design. The study was conducted at the Microbiology Research Center laboratory at the Faculty of Dentistry, Airlangga University, Indonesia. The study was conducted in vitro, the sample size was calculated using the Federer formula as many as four agar plates containing bacteria Phorphyromonas gingivalis, with each plate given five different treatments: control (ethanol), Lumbricus rubellus earthworm extract (ECT) with concentrations of 50%, 25%, 12.5%, and 6.25% respectively. The data in the form of inhibition zone diameter (measured in millimetres) obtained were tested using One-Way ANOVA. RESULTS: The mean diameter of the inhibitory zone extract of Lumbricus rubellus earthworm on the growth of Phorphyromonas gingivalis bacteria in the treatment group had significant differences (p < 0.05). The mean inhibition zones between controls and the ECT treatment group (ECT 50%, ECT 25%, ECT 12.5%) were statistically different (p < 0.05), in contrast with ECT 6.25% (p > 0.05) which did not show significant difference with the control group (p > 0.05). CONCLUSION: Lumbricus rubellus earthworm extract with a concentration of 50% has the largest diameter of the inhibitory zone on the growth of the Phorphyromonas gingivalis bacteria. The 6.25% earthworm extract showed no antibacterial activity against the growth of Phorphyromonas gingivalis bacteria.

scholarly journals PENGARUH MODEL PEMBELAJARAN SAINS TEKNOLOGI MASYARAKAT (STM) TERHADAP KEMAMPUAN PEMAHAMAN KONSEP SISWA PADA POKOK BAHASAN EKOSISTEM KELAS VII MTs Amilda 3 1 PARADIGMA PALEMBANG

2017 ◽  
Vol 3 (1) ◽  
pp. 47-57
Author(s):  
Amilda Amilda ◽  
Sulton Nawawi ◽  
Uci Minasari
Keyword(s):  
Learning Model ◽  
T Test ◽  
Learning Science ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Science Technology Society ◽  
Science Technology ◽  
The Subject ◽  
Better Than

The purpose of the study was to determine the effect of the application of learning model ofScience Technology Society (STS)  to the ability of understanding the concept of Biologystudents on the subject of VII grade ecosystem MTs Paradigma Palembang. The desain ofstudy used the design of the Nonequivalent Control Group Design with Quasi Experimentalmethod (quasi experiment). These sample included 35 students. Based on the results of theanalysis of students' concept of understanding shows that the implementation of learningusing the model of learning Science Technology Society (STS)  is better than theconventional learning model. It can can be seen from the calculation of the t-test showed ofstudents' concept of understanding sig t-value 0.000 < 0,05, then Ha accepted and H0 rejected.The result of analysis of the improvement of the average completeness of the conceptualunderstanding of the experimental class is 48.2% while the students 'understanding of thecontrol class is 29.2%, which means that the students' understanding of the concept of theexperimental class is higher than the understanding of the concept of the control class. This, itcan be concluded that the learning model of Science Technology Society (STS) around effecton understanding the concept of students of class VII MTs Paradigma Palembang

scholarly journals Pengaruh Kitosan Terhadap Jumlah Osteoklas dan Osteoblas Pada Tikus Galur Wistar Model Menopause

2017 ◽  
Vol 1 (2) ◽  
pp. 76-87
Author(s):  
Muhammad Nur
Keyword(s):  
Treatment Group ◽  
Total Sample ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Positive Control Group ◽  
Control Group ◽  
Control Group Design ◽  
White Rats ◽  
Significant Difference

Chitosan is one of the most abundant and dispersed polymers in nature. It has a rapid healing effect for tissues and has an effect on bone remodeling. The purpose of this study was to prove that giving chitosan influenced the decrease of osteoclast number and increasing number of osteoblasts in female mice of wistar strain of ovariectomy menopause model.This study used a posttest only control group design. The total sample of 30 rats divided into three groups was randomized, osteoporosis was made with the menopausal model which was performed ovariectomy in the positive control group and the treatment group then in the treatment group was given chitosan extract of single dose of 45 mg / day via Nasogastric Tube (NGT). K1 was a negative control group (without ovariectomy and without chitosan), K2 was a positive control group (with no chitosan ovariectomy), K3 was the treatment group (ovariectomy and chitosan 45 mg / day).The results showed significant differences in the number of osteoblasts between K1 and K3, K2 with K3, and no significant differences were found in the K1 group with K2. While the number of osteoclasts showed that there were significant differences in K1 group with K2 and no significant difference was found in K1 group with K3, K2 with K3.Conclusions in this study showed that 45 mg / day of chitosan doses could significantly increase osteoblast counts in menopause female white rats and decrease the number of osteoclasts performed by ovariectomy with chitosan administration.

scholarly journals Effect of Giving Mahkota Dewa Fruits (Phaleria Macrocarpa) Extract to Epithelialization In Incision Wound of White Rats (Rattus Norvegicus)

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Idola Perdana Sulistyoning Suharto
Keyword(s):  
Treatment Group ◽  
Rattus Norvegicus ◽  
Male Rats ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
White Rats ◽  
Significant Difference ◽  
Phaleria Macrocarpa ◽  
Incision Wound

The research purpose was to analysis effect of giving mahkota dewa fruits (Phaleria macrocarpa) extract to epithelialization in incision wound of white rats (Rattus norvegicus). The method was randomized posted-only control group design. There were 30 male rats (Rattus norvegicus) grouped on control and treatment group. Control group divided into three groups (KK1, KK2, KK3) and also treatment group divided into three groups (KP1, KP2, KP3). Control group just given CMC 1% peroral without mahkota dewa fruits extract, the treatment group given mahkota dewa fruits extract 22.5 mg/kg body weight. The data was analyzed by Kruskall Wallis. Based on Kruskall Wallis test, obtained result that there was a significant difference (p<0.05) epithelialization variable with p value p = 0.000 between control and treatment group. And based on One-way Anova test, obtained result that there was a significant difference (p<0.05) with p value p =0.000 between control and treatment group. The conclusion of this research was giving mahkota dewa fruits (Phaleria macrocarpa) extract can increase epithelialization in incision wound of white rats (Rattus norvegicus). Keywords : Mahkota Dewa Fruits (Phaleria Macrocarpa) Extract, Epithelialization, Incision Wound 

scholarly journals Teaching English Vocabulary with Greek or Latin Roots to Iranian EFL Students by PLS Sequential Structures

2020 ◽  
Vol 8 (4) ◽  
pp. p73
Author(s):  
Abolfazl Shirban Sasi
Keyword(s):  
Treatment Group ◽  
Teaching Method ◽  
English Word ◽  
Control Group ◽  
Teaching English ◽  
Control Group Design ◽  
Significant Difference ◽  
Efl Students ◽  
The Mean ◽  
And Control

PLS is a newly developed language teaching method which predominantly applies imaginative and random usage of pictures. The present paper explains and reports the application of a PLS technique in teaching English vocabulary with Greek or Latin roots to Iranian EFL learners. A pretest-posttest control-group design was used to investigate the effects of this sequential structures technique. Participants were intermediate level EFL students in two branches of the same language institute in Tehran (N = 94, p ? 0.05). The subjects were randomly assigned into two groups of treatment and control. The experiment lasted for seven one-hour lessons held in successive sessions in three weeks during which 35 Greek and Latin roots were taught with at least three English word examples. For the research instrument, the students were administered a 35-item multiple-choice vocabulary exam for the pre and post tests prior to and immediately after the teaching phase. Consequently, an independent sample T-test was used to examine the outcome of the experiment. At p = .009, the statistical test revealed a significant difference in the gain scores between the two groups. Also, the mean vocabulary gain score of 7.23 for the treatment group as opposed to the mean of 5.35 for the control group illustrated the relative more L2 vocabulary intake for the treatment group.

scholarly journals INTERVENSI EMOTIONAL FREEDOM TECHNIQUE (EFT) UNTUK MENGURANGI NYERI POST OPERASI SECTIO CAESARIA (SC)

2018 ◽  
Vol 1 (1) ◽  
pp. 53
Author(s):  
Lutfatul Latifah ◽  
Dian Ramawati
Keyword(s):  
Treatment Group ◽  
Rating Scale ◽  
Numeric Rating Scale ◽  
Pain Scale ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Significant Difference ◽  
Before And After ◽  
Mother And Child

Introduction: Every woman who undergo Sectio Caesaria (SC) surgery for delivery their babies often complain about pain after the surgery and it become very distrubing. The effect of the pain cause mobilisation limitation, interrupting bonding attachment between mother and child, and postponning breastfeeding inititation. This study conduct EFT or tapping as the pain management in women post SC surgery.The aim of this study is to identify the effect of EFT or tapping for reducing pain after SC surgery. Methods: Quasy experimental with pre-post non randomized control group design was used in this study. The data been colleted using Numeric Rating Scale (NRS) to measure the pain in participants before and after EFT or tapping treatment. The number of participants was 30 mothers with 15 women in control and treatment group respectively. The t-test was used to analize the effect of the EFT. Results: The mean of pain scale before treatment in control group was 5.20 dan 6.20 for the treatment group. The pain scale after treatment in control group was 5.00 and 4.27 in treatment group. There was a significant difference between the reducing pain scale in treatment group with p value = 0,000 (α = 0.05). Discussion: EFT or tapping can be one of many non farmacologic treatment as complementer therapy to reduce pain after SC surgery. Keywords: post SC pain, EFT, pain scale decline, non farmacologic therapy

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