The Effect of ‘box-and-bead’ Analogy versus Retrieval-based Learning on Retention in Chemical Kinetics among First-Year Chemistry Students

2021 ◽  
Vol 20 (5) ◽  
pp. 300-315
Author(s):  
Taurayi Willard Chinaka
Keyword(s):  
Chemical Kinetics ◽  
Conceptual Knowledge ◽  
Statistical Difference ◽  
Procedural Knowledge ◽  
Sampling Technique ◽  
First Year ◽  
Chemistry Students ◽  
Moment Coefficient ◽  
Post Test ◽  
And Performance

The study examined the effects of the box-and-bead analogy versus retrieval-based learning on students’ retention and performance in chemical kinetics among first-year chemistry students. A purposive sampling technique was used to sample participants from the accessible population. The sample was made of two hundred and forty-five (n = 245) first-year chemistry students, at a public university, in South Africa. The study adopted a sequential explanatory research design. A chemical kinetics retention test (CKRT) was used for data collection as pre-, post-test and delayed post-test. A reliability coefficient of 0.73 was established using the Kuderson and Richardson correlation moment coefficient. Participants in the two groups were taught using an advanced retrieval instruction approach and the box-and-bead analogy. The results of the study showed no statistical difference in the retention of procedural knowledge and a statistical difference in conceptual knowledge. Overall, students taught using advanced retrieval performed better than the other group. The study underlines the fact that analogy-based instruction can be effective in improving conceptual knowledge using concrete analogues that aid in the retention of chemical kinetics. The findings of this study are diagnostic and they assist module designers in determining the procedural and conceptual knowledge in chemical kinetics retained by students, even after years have passed.

KONTRIBUSI PENGUASAAN KALIMAT EFEKTIF TERHADAP KETERAMPILAN MENULIS TEKS EKSPOSISI SISWA KELAS X SMK NEGERI 2 PADANG

2019 ◽  
Vol 8 (3) ◽  
pp. 78
Author(s):  
Diana Citra ◽  
Afnita Afnita
Keyword(s):  
Random Sampling ◽  
Writing Skills ◽  
Sampling Technique ◽  
First Year ◽  
Performance Tests ◽  
First Year Students ◽  
Correlational Design ◽  
Writing Skill ◽  
And Performance ◽  
Descriptive Method

ABSTRACT The purpose of this study was categorized into three. First, to describe the effective sentence mastery of the first year students at SMK Negeri 2 Padang. Second, to describe the writing skills of a exposition of the first year students at SMK Negeri 2 Padang. Third, to describe the contribution of the effective sentence mastery into the writing skills of a exposition text made by the first year students at SMK Negeri 2 Padang. The design of this research was quantitative with a descriptive method. Then, this study also was a correlational design. The population of this study was the first year students at SMK Negeri 2 Padang for about 498 students. The sample of this study was taken by using a proportional random sampling technique (15%), which was 70 students. The data of this study were the results of effective sentence mastery and the results of the writing skill of a exposition text. The instrument of this study was an objective test to measure effective sentence mastery and performance tests to measure expositon text. There were several results of this study. First, the effective sentence mastery of the first year students at SMK Negeri 2 Padang was in Good qualifications (B). Second, the writing skills of a exposition of the first year students at SMK Negeri 2 Padang was in a Good qualification (B). Third, describe the effective sentence mastery contributed 82,00% to the exposition text writing skills of the first year students of SMK Negeri 2 Padang. Kata Kunci: kontribusi, penguasaan kalimat efektif,  keterampilan menulis teks eksposisi 

scholarly journals The Effect of Geogebra on Students’ Conceptual and Procedural Knowledge: The Case of Applications of Derivative

2017 ◽  
Vol 7 (2) ◽  
pp. 67 ◽  
Author(s):  
Mehmet Fatih Ocal
Keyword(s):  
Conceptual Knowledge ◽  
Teaching And Learning ◽  
Procedural Knowledge ◽  
Dynamic Geometry ◽  
The Other ◽  
Control Group ◽  
Other Hand ◽  
Significant Difference ◽  
Before And After ◽  
Post Test

Integrating the properties of computer algebra systems and dynamic geometry environments, Geogebra became an effective and powerful tool for teaching and learning mathematics. One of the reasons that teachers use Geogebra in mathematics classrooms is to make students learn mathematics meaningfully and conceptually. From this perspective, the purpose of this study was to investigate whether instruction with Geogebra has effect on students’ achievements regarding their conceptual and procedural knowledge on the applications of derivative subject. This study adopted the quantitative approach with pre-test post-test control group true experimental design. The participants were composed of two calculus classrooms involving 31 and 24 students, respectively. The experimental group with 31 students received instruction with Geogebra while the control group received traditional instruction in learning the applications of derivative. Independent samples t-test was used in the analysis of the data gathered from students’ responses to Applications of Derivative Test which was subjected to them before and after teaching processes. The findings indicated that instruction with Geogebra had positive effect on students’ scores regarding conceptual knowledge and their overall scores. On the other hand, there was no significant difference between experimental and control group students’ scores regarding procedural knowledge. It could be concluded that students in both groups were focused on procedural knowledge to be successful in learning calculus subjects including applications of derivative in both groups. On the other hand, instruction with Geogebra supported students’ learning these subjects meaningfully and conceptually.

scholarly journals Enhancing the Conceptual, Procedural and Flexible Procedural Knowledge of Pre-Service Mathematics Teachers in Algebra

2019 ◽  
Vol 4 (2) ◽  
pp. 66-78
Author(s):  
Wasiu Ismaila Otun ◽  
Adetunji Abiola Olaoye
Keyword(s):  
Mathematics Teachers ◽  
Instructional Strategy ◽  
Conceptual Knowledge ◽  
Procedural Knowledge ◽  
Control Group ◽  
Knowledge Test ◽  
Knowledge For Teaching ◽  
Post Test ◽  
Quasi Experimental ◽  
Experimental Group

The study investigated the effects of Solve-Reflect-Pose Strategy (SRP) on pre-service mathematics teachers’ algebraic knowledge for teaching in Nigeria. A pre-test-post-test quasi experimental design was employed. Intact classes were used and in all, 182 pre-service mathematics teachers’ participated in the study (92 in the experimental group taught with the SRP and 90 in the control group taught using the Modified Conventional Method (MCM). One research instrument manipulated at three levels namely: Conceptual Knowledge Test (CKT), Procedural Knowledge Test (PKT) and Flexible Procedural Knowledge Test (FPKT), was used for the quantitative data and interview protocol for qualitative data. The two research questions formulated were analysed using descriptive statistics while independent sample t-test was used to analyse the two hypotheses. Results showed that there were statistically significant differences in the mean post-test achievement scores on conceptual knowledge test, procedural knowledge test and flexible procedural knowledge test between pre-service teachers exposed to the SRP and those exposed to the MCM, all in favour of the SRP group. Based on the results, SRP should be adopted as an instructional strategy and efforts should be made to integrate the philosophy of SRP into the pre-service teachers’ curriculum at the teacher-preparation institutions.

The Effects of Assessment as Learning (AaL) on ESL students’ Academic Performance and Motivation in the light of self-Regulated Learning (SRL) Theor

2020 ◽  
Vol 14 (4) ◽  
pp. 26-42
Author(s):  
Preeta Hinduja ◽  
◽  
Martin Thomas
Keyword(s):  
Academic Performance ◽  
Self Regulation ◽  
Sampling Technique ◽  
Control Group ◽  
Control Group Design ◽  
Self Regulated Learning ◽  
Assessment As Learning ◽  
Post Test ◽  
Quasi Experimental ◽  
And Performance

This study intended to investigate the effects of Assessment as Learning (AaL) strategy on satisfaction of academic performance and motivational beliefs of ESL (English as Secondary Language) students of Public sector school. Using the quasi-experimental pre-post-test control group design, and assessment strategy recommended by Lee and Mak (2014), this study examined the effects of Assessment as Learning (AaL) on students’ studying ESL writing skills in Argumentative Essay. Through the convenience sampling technique, 60 ninth standard students were selected to participate in the study. Students' performance was analyzed with the help of Argumentative Essay Test and Motivation was investigated by using Motivated Strategies for Learning Questionnaire (MSLQ). Both control and experimental groups were trained through traditional teaching ESL strategies; however, experimental group students practiced an additional intervention identified as "Assessment as Learning (AaL)" strategy. After seven weeks of study, both groups' performance and motivation were evaluated through post-tests. The data from pre-tests and post-tests were analysed by Independent Sample t-tests. The results demonstrated that the experiment group’s academic scores and motivation were significantly higher, thus the implementation of AaL practice is recommended to raise self-regulation and performance of students.

scholarly journals Enhancing Islamic Students’ Reading Comprehension through Predict Organize Search Summarize Evaluate Strategy

AL-TA LIM ◽  
2017 ◽  
Vol 24 (1) ◽  
pp. 1-8
Author(s):  
Darmayenti Darmayenti ◽  
Martin Kustati
Keyword(s):  
Reading Comprehension ◽  
Sampling Technique ◽  
First Year ◽  
Reading Tests ◽  
State Institute ◽  
First Year Students ◽  
Islamic Studies ◽  
Significant Difference ◽  
Post Test ◽  
Academic Year

This paper is a report of an experimental research project conducted in a reading comprehension course for first-year students of the Adab Faculty of the State Institute for Islamic Studies Imam Bonjol Padang, West Sumatera, Indonesia, during the academic year 2015/2016. The “Predict Organize Search Summarize Evaluate” (POSSE) is one strategy that can enhance students’ comprehension in reading. Two classes of Arabic and History students chosen through cluster random sampling technique were used as the sample of the research. Reading tests were used to collect the data which was given to both of classes on pre-test and post-test. The result of the research showed that the implementation of Predict Organize Search Summarize Evaluate strategy gave a significant difference in term of the students-learning outcome between the students who were taught through POSSE strategy and by traditional one. The finding of the study showed that teaching reading by using POSSE strategy gave significant effect towards students’ reading comprehension. This strategy could improve the students’ reading component on finding topic. It can be concluded that using POSSE Strategy has improved Indonesian students’ reading comprehension. It is also recommended for English lecturers use POSSE strategy as one of teaching strategies for reading comprehension.

scholarly journals LAUGHTER THERAPY REDUCES ANXIETY IN FIRST YEAR STUDENTS OF STIKes SANTA ELISABETH MEDAN IN 2018 [LAUGHTER THERAPY MENURUNKAN ANSIETAS MAHASISWA TINGKAT I STIKES ELISABETH MEDAN TAHUN 2018]

2020 ◽  
Vol 7 (2) ◽  
pp. 40
Author(s):  
Mestiana Br Karo ◽  
Lindawati Simorangkir ◽  
Lestariani Gea
Keyword(s):  
Sampling Technique ◽  
Child Therapy ◽  
Anxiety Level ◽  
Wilcoxon Test ◽  
P Value ◽  
First Year ◽  
Test Design ◽  
First Year Students ◽  
Post Test ◽  
Quota Sampling

<p>Anxiety is a reaction that anyone can experience. Excessive anxiety will hinder a person's function in his life. Students often experience anxiety, as a result of psychosocial factors, where students do not respond appropriately to stressors, for example, new environmental situations. Laughter therapy is a powerful antidote to stress, illness and conflict. The purpose of this study was to determine the effect of child therapy on the anxiety of first-year students of STIKes/Health Institute of Santa Elisabeth Medan in 2018. The research design applied One Group Pre-Post Test Design. The sampling technique was selected using quota sampling, with a total sample of 63 people. The results of the study revealed that the average anxiety level of the students was 1.83 before being given the laughter therapy. After the laughter therapy, the average of students’ anxiety level decreased into 0.98. The Wilcoxon test showed the comparison score before and after the therapy, with p value 0.0001 (p &lt;0.05). This also means that there was an effect of laughter therapy on the anxiety of students at STIKes Santa Elisabeth Medan in 2018. From the research results, it is expected that students should experience the laughter therapy to reduce their anxiety and manage to more calm and relaxed.</p><p><strong>BAHASA INDONESIA </strong>Ansietas adalah reaksi yang dapat dialami siapapun. Rasa cemas yang berlebihan akan menghambat fungsi seseorang dalam kehidupannya. Mahasiswa sering mengalami cemas, akibat dari faktor psikososial, dimana mahasiswa tidak merespon secara tepat terhadap stressor misalnya terhadap situasi lingkungan yang baru. Laughter therapy atau terapi tawa merupakan penangkal stres, sakit dan konflik yang kuat. Tujuan penelitian ini untuk mengetahui pengaruhlaughter therapy terhadap ansietas mahasiswa tingkat I STIKes Santa Elisabeth Medan Tahun 2018. Desain penelitian menggunakan rancangan One Group Pre-Post Test Design. Teknik pengambilan sampel dipilih dengan menggunakan quota sampling, denganrjumlah sampel sebanyak 63 orang. Hasil penelitian sebelum diberikan laughter therapy, rata-rata tingkat ansietas 1,83. Kemudian setelah diberikan laughter therapy terdapat penurunan menjadi 0,98. Uji statistik yang digunakan adalah uji Wilcoxon dengan nilai p value = 0,0001 (p &lt; 0,05) yang berarti ada pengaruh laughter therapy terhadap ansietas mahasiswa tingkat I STIKes Santa Elisabeth Medan tahun 2018. Dari hasil penelitian di harapkan mahasiswa dapat melakukan laughter therapy sehingga dapat mengurangi kecemasan yang dialami dan membuat lebih tenang dan rileks.</p><div> </div>

An investigation into student perceptions towards mathematics and their performance in first year chemistry: introduction of online maths skills support

2016 ◽  
Vol 17 (4) ◽  
pp. 1203-1214 ◽  
Author(s):  
Peter R. Johnston ◽  
Dianne J. Watters ◽  
Christopher L. Brown ◽  
Wendy A. Loughlin
Keyword(s):  
Student Perceptions ◽  
Significant Proportion ◽  
First Year ◽  
Multiple Choice Questions ◽  
Chemistry Students ◽  
Support Programme ◽  
Usage Patterns ◽  
And Performance ◽  
And Mathematics ◽  
Significant Figures

An online Maths Skills Site was developed as an integrated support programme for first year Chemistry students, the content of which, was based on an analysis of their high-school mathematical backgrounds. This study examined the students’ perceptions of Maths, their patterns of usage of the Maths Skills Site and whether there was a relationship between usage of the site and performance in first year chemistry. A questionnaire and surveys were administered to obtain data on student perceptions, confidence and anxiety. Hit-count tracking was enabled for the Maths Skills Site items (notes, questions, answers, online multiple choice questions), to establish usage patterns for the cohort and individuals, over time and against topic (significant figures, algebra,etc.). Student perceptions changed over the semester. Increased confidence with chemistry and mathematics was observed, however, a significant proportion were still anxious when having to answers questions requiring calculations. Students who were already confident did not use the Maths Skills Site, whereas the students who did use the site displayed improved achievements in the credit grade category, as compared to non-users and employed a self-directed approach, tailoring their individual learning around topics important to them.

scholarly journals Using Noddy Cartoon to Improve the Writing Skill of the First Year Students of SMK Terpadu Mega Rezky Makassar

2017 ◽  
Vol 4 (2) ◽  
pp. 109-119
Author(s):  
Novalia Tanasy
Keyword(s):  
Sampling Technique ◽  
Control Group ◽  
First Year ◽  
First Year Students ◽  
Significant Difference ◽  
Writing Skill ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean ◽  
Experimental Group

This research is conducted to find out: (1) whether or not the use of Noddy cartoon is effective in improving the writing skill of the first year students of SMK Terpadu Mega Rezky Makassar and (2) the attitude of the first year students of SMK Terpadu Mega Rezky Makassar toward the use of Noddy cartoon in improving their writing skill. The research employs quasi-experimental method with two groups namely control and experimental groups. Each group consists of 30 students. The sample is chosen by applying cluster random sampling technique. The writer uses a test of writing and questionnaire in experimental group. The data obtained through the test is analyzed by using inferential statistic through SPSS version 22.0 program. The Likert-scale is used to analyze data of the student’s response to the questionnaire. In conducting the research, the writer applies Noddy cartoon episodes as the medium in improving the students’ writing skill. The result of this research shows that the use of Noddy cartoon is effective in improving the writing skill achievements of the first year students of SMK Terpadu Mega Rezky Makassar. It is indicated by the significant difference between the result of post-test in the experimental and control groups. The mean score of post-test in the experimental group is 76.77, which is higher than the mean score of post-test in the control group which is only 65.97. Furthermore, the data that are collected from the questionnaire show that the students have positive attitude towards the use of Noddy cartoon in learning writing, which is in scale of 83.20 or categorized as positive.

Analysing the impact of a discussion-oriented curriculum on first-year general chemistry students' conceptions of relative acidity

2018 ◽  
Vol 19 (2) ◽  
pp. 543-557 ◽  
Author(s):  
Lisa Shah ◽  
Christian A. Rodriguez ◽  
Monica Bartoli ◽  
Gregory T. Rushton
Keyword(s):  
Organic Chemistry ◽  
General Chemistry ◽  
Chemistry Education ◽  
Item Analysis ◽  
First Year ◽  
Chemistry Students ◽  
Post Test ◽  
Primary Determinant ◽  
The Impact ◽  
Relative Acidity

Instructional strategies that support meaningful student learning of complex chemical topics are an important aspect of improving chemistry education. Adequately assessing the success of these approaches can be supported with the use of aligned instruments with established psychometrics. Here, we report the implementation and assessment of one such curriculum,Chemical Thinking, on first-year general chemistry students' conceptions of relative acidity using the recently-developed concept inventory,ACIDI. Our results reveal that, overall, students performed significantly better onACIDIfollowing instruction, with scores consistent with those previously reported for students who had completed one semester of organic chemistry. Students performed equally well on a delayed post-test administered ten weeks after final instruction, which suggests that instruction promoted a stable conceptual reprioritisation. Item analysis ofACIDIrevealed that students generally made conceptual gains on items where inductive effects were the primary determinants of conjugate base stability and relative acidity. However, students overwhelmingly struggled on items where resonance was the primary determinant. Analysis of student–student arguments in active learning settings provided evidence for how the quality of student arguments impacted their conceptions. Overall, these findings suggest that students were able to avoid several superficial misconceptions cited in the literature about relative acidity, and that this topic, traditionally taught exclusively in organic chemistry, may be introduced earlier in the sequence of curricular topics. Implications for future studies on the role of argumentational aspects of student–student conversations and facilitation strategies in promoting or hindering meaningful learning are discussed.

scholarly journals The effects of verbal and visual feedback on performance and learning freestyle swimming in novice swimmers

Kinesiology ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Maria Giannousi ◽  
Efthimis Kioumourtzoglou
Keyword(s):  
Intervention Program ◽  
Control Group ◽  
First Year ◽  
First Year Students ◽  
Modeling Group ◽  
Post Test ◽  
Speed Performance ◽  
And Performance ◽  
Effects Of Feedback ◽  
And Control

<div>The purpose of the present study was to investigate the effects of feedback on freestyle learning and performance of novice swimmers. Sixty male (Mage=18.7, SD=1.82) first year students were randomly assigned into four groups: self-modeling, expert-modeling, verbal, and control group. The intervention program lasted for seven weeks. Participants were evaluated in 25m freestyle swimming, with a pool buoy between the legs and breathing every three hands through a pre-test, a post-test and a retention test. The result revealed that self-modeling group was the most effective, in comparison with the other types of feedback, in terms of improvement of the technique in novice swimmers. There were no differences between groups in the speed performance of 25m free style swimming. Overall, the present study provides valuable evidence for the effects of self-modeling on performance in freestyle swimming, and encourages research to further</div><div>explore such effects between different types of feedback in real training conditions.</div>

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