scholarly journals Effect of the VAN Hiele Instructional Model on Students’ Achievement in Geometry

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Edward Yalley ◽  
Gloria Armah ◽  
Richard Kwame Ansah
Keyword(s):  
Curriculum Design ◽  
Simple Random Sampling ◽  
Control Group ◽  
Instructional Model ◽  
Van Hiele ◽  
Geometric Thinking ◽  
Quasi Experimental ◽  
Van Hiele Model ◽  
Experimental Group ◽  
Level 2

The purpose of this study was to determine the effect of the Van Hiele instructional model on students’ achievement in Circle Geometry at Daffiama Senior High School in the Daffiama-Bussie-Issa District of the Upper West Region in Ghana. The purposive and simple random sampling techniques were employed to select a sample of 75 participants for the study. The sample involved two groups: the experimental group and the control group. While teaching based on the Van Hiele model was carried out in the experimental group, teaching with the traditional method was carried out in the control group. The study employed a quasi-experimental research design. The instruments used for data collection were tests, interviews, and classroom observation. Findings from the data analysis suggested that participants were at the prerecognition level before the intervention, improved from the prerecognition level to level 2 after the intervention as the model facilitated learning. It was recommended that teachers determine the geometric thinking levels of students before instruction; the Van Hiele learning and instructional model is adopted in curriculum design and applied in the teaching of geometry and other areas of mathematics.

scholarly journals Stimulating Students’ Argumentation using Drawing – based Modeling on The Concept of Ecosystem

2017 ◽  
Vol 2 (1) ◽  
pp. 98
Author(s):  
E N Sumarni ◽  
A Widodo ◽  
R Solihat
Keyword(s):  
High School Students ◽  
Control Group ◽  
School Students ◽  
Control Group Design ◽  
Group Data ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
Experimental Group ◽  
Level 2

<p class="Abstract">Drawing – based modeling as learning approach, it allows students to create models based on drawing which help them to run a simulation. Students can use drawing–based modeling to learn a pair of interacting population known as predato–prey system while they usually conducted practicum using diagram of organisms. This study was to explore students’ argumentation and students’ understanding on the concept of the ecosystem. The study was conducted quasi – experimental using the matching – only post-test – only control group design. The participants consist of 60 grade 10 senior high school students in Subang, West Java. They are placed into two groups, 30 students in the experimental group and 30 students in the control group. Data was collected through argumentation test and selected response test for assessing students’ understanding. Students’ argumentation were analyzed using Toulmin’s argumentation pattern and statistical analysis. The result showed there is no significant difference between the experimental group and the control group for students’ argumentation. Most of the students are predominantly at level 2. But the coherency of arguments of the experimental group is more coherent than the control group. It means that the students in experimental group can make logical claim and supported by the correct and relevant grounds (data, warrant, and backing). The result of students’ understanding showed there is a significant mean score between the experimental group and the control group whether 72.33 for the experimental group and 62.13 for the control group</p>

scholarly journals The Effect of Two Stay Two Stray (TSTS) Technique of Cooperative Learning Model toward Students’ Biology Learning Outcomes

Biosfer ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 25-29
Author(s):  
Eva Novika Sari ◽  
Reduk Nilawarni ◽  
Erna Heryanti
Keyword(s):  
Cooperative Learning ◽  
Learning Outcomes ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Learning Model ◽  
Attitude Scale ◽  
Control Group ◽  
Quasi Experimental ◽  
Biology Learning ◽  
Experimental Group

Learning activities determines the achievement of learning aims and objectives. One of the objectives can be reflected in higher students’ learning result. The improvement may occur using Two Stay Two Stray Technique of Cooperative Learning Model since students are encouraged to learn together and help each other in groups. The research aimed to determine the effect of Two Stay Two Stray (TSTS) technique of Cooperative Learning Model on Students’ Biology Learning Outcomes on the ecosystem topic. This research was carried out at SMAN 2 Tangerang on May to June 2012 using a quasi-experimental method. Two science classes at grade 10 were selected by purposive sampling technique, class X-7 as the experimental group and class X-8 as the control group. An overall of 36 students of each class was selected by simple random sampling. Data obtained by using instruments of multiple choice question test and affective Attitude Scale. The result of Normality testing of Kolmogorov-Smirnov test and homogeneity testing of F-test showed a normal distribution and homogenous data. The average Biology study result of experimental group was 79.1 while of control group was 74.3. Based on the result, it can be concluded that Two Stay Two Stray (TSTS) technique of Cooperative Learning Model affected Students’ Biology Learning Outcomes.

scholarly journals EFEKTIVITAS MODEL PEMBELAJARAN INQUIRY UNTUK MENINGKATKAN PENALARAN MATEMATIS SISWA PADA MATERI PELUANG

2020 ◽  
Vol 3 (1) ◽  
pp. 39
Author(s):  
Sandi Triatma ◽  
Citra Utami ◽  
Rika Wahyuni
Keyword(s):  
Experimental Design ◽  
Control Group ◽  
Control Group Design ◽  
Van Hiele ◽  
Group Design ◽  
Quasi Experimental ◽  
Level 1 ◽  
Level 2

<em>Penelitian ini bertujuan untuk mengetahui efektivitas model pembelajaran Inquiry untuk meningkatkan kemampuan penalaran matematis siswa. Jenis penelitian ini adalah Quasi Experimental Design dengan desain penelitian Non Equivalen Control Group Design. Populasi dalam penelitian ini adalah seluruh siswa kelas IX SMP Barito Singkawang sebanyak 3 kelas yaitu kelas IXA, IXB, dan IXC. Pengambilan sampel dalam penelitian ini menggunakan sampling purposive yaitu kelas IXA kelas sebagai kelas eksperimen dan kelas IXC sebahgai kelas kontrol. Instrumen yang digunakan dalam penelitian ini adalah tes kemampuan penalaran matematis, dan angket motivasi siswa. Sebelum digunakan instrumen terlebih dahulu diuji validitasnya dengan ahli. Hasil penelitian menunjukan : 1) kemampuan penalaran matematis siswa mencapai kriteria ketuntasan minimum (KKM = 70) secara individu dan klasikal yaitu sebesar  77,38 dan ketuntasan klasikal melampaui 75%; 2) Terdapat perbedaan peningkatan kemampuan penalaran matematis siswa dengan menggunakan model pembelajaran Inquiry. 3) Motivasi belajar siswa kelas IX SMP Barito Singkawang tinggi pada materi peluang setelah diterapkan model pembelajaran Inquiry sebesar 128,31 dengan kategori sangat tinggi.penelitian menunjukan bahwa persentase siswa dalam memecahkan masalah geometri berdasarkan teori Van Hiele masih berada pada kategori rendah. Jadi dari hasil penelitian didapat bahwa siswa yang memiliki kemampuan koneksi berdasarkan tingkat berpikir level 2 berada di kategori sedang sedangkan kemampuan koneksi dengan tingkat berpikir level 1 dan level 0 berada pada kategori rendah.</em>

scholarly journals An Innovative Media Platform-Supported Blended Methodology in English for Dental Purposes Program

2017 ◽  
Vol 12 (03) ◽  
pp. 98 ◽  
Author(s):  
Jafar Asgari Arani
Keyword(s):  
Language Learning ◽  
Positive Impact ◽  
Simple Random Sampling ◽  
Social Medium ◽  
T Test ◽  
Control Group ◽  
P Value ◽  
Quasi Experimental ◽  
The Impact ◽  
Experimental Group

Due to the existing extensive curricula of English for Dental Purposes (EDP) courses and absence of enough weekly hours to cover them in Iran, there is a limited insufficient exposure to English to improve students’ English communication skills to the levels necessary for their future career. Therefore, there have been needs to appraise the present teaching approaches and reform the configuration and context of EDP classes to yield highest profit for their students. The study was designed to address issues central to the perception and expectations of students in regard the use and the impact of the social medium, WhatsApp. As part of this impression, a spectrum of procedures has been depicted to employ this cross-platform messaging application. This research was conducted among 70 2nd year dentistry students at Kashan University of Medical Sciences, in a course called English for Dental Purposes (EDP). The descriptive research project employing a qualitative and quasi-experimental study was chosen to collect data using a valid and reliable pretest-posttest design. Two groups 35 subjects were randomly selected via simple random sampling. The control group was taught by conventional method, while the experimental group was taught through the proposed whatsApp assisted language learning approach in a blended way. A paired t-test was utilized to compare the results of each group and an independent sample t-test was utilized to compare the results in control and experimental group. The f-ratio value is 7.88138; the t-value is 2.80738. The p-value is .006512 and the result is significant at p < .01. Therefore, there are good reasons to think WhatsApp-based method of teaching EDP as a more effective approach than the face to face method . The Likert scale questionnaire descriptively analyzed via SPSS 16.00 version revealed experimental group had generally positive attitudes towards Apps-based teaching of academic materials. This media helps students get to be more capacitated in EDP, advances the class learning of English for Dental Purposes, enhances students' knowledge more satisfactorily, motivates them to gain a positive impact and willingness in their class activities and had resulted in more continuity in study and self-confidence. So, it deserves considering the incorporation of the new application i.e. WhatsApp effectively in the curriculum of EDP pedagogies as an educational means.

scholarly journals Effects of Using Corpus-Based Instructional Mediation on EFL Students’ Academic Writing Skills Improvement

2021 ◽  
Vol 7 (2) ◽  
pp. 133-153
Author(s):  
Amare Tesfie Birhan ◽  
Mulugeta Teka ◽  
Nibret Asrade
Keyword(s):  
Academic Writing ◽  
Engineering Students ◽  
Writing Skills ◽  
Sampling Technique ◽  
Simple Random Sampling ◽  
Control Group ◽  
Writing Courses ◽  
Quasi Experimental ◽  
Efl Students ◽  
Experimental Group

This study aimed at examining the effects of corpus-based instructional mediation on EFL learners’ academic writing skills improvement. To conduct the research, a quasi-experimental research design was employed. A total of 72 EFL mechanical engineering students participated in the study, and they were selected through a simple random sampling technique.  Among them, 25 students were assigned to the experimental group and 47 students to the control group. The data were gathered by means of pre- and post-tests. Multivariate Analysis of Variance (MANOVA) was used to observe the statistical differences between the control and the experimental groups in their academic writing skills. The results showed that the students who were instructed through corpus-based instructional mediation outperformed than the students who were instructed in the conventional instructional approach. Particularly, the students who participated in the experimental group improved their content, communicative achievement, organization, grammar, and vocabulary usage than the students who participated in the control group. Therefore, this research calls for inclusion of corpus-based authentic linguistic elements in their teaching material when teaching academic writing courses in the EFL context.

scholarly journals THE EFFECT OF USING MENTAL COMPUTATION IN IMPROVING MATHEMATICAL PROBLEM - SOLVING ABILITY AMONG STUDENTS

2021 ◽  
Vol 8 (12) ◽  
Author(s):  
Talal Tayel Al Mashqabah
Keyword(s):  
Problem Solving ◽  
Mathematical Problem ◽  
Simple Random Sampling ◽  
Mathematical Problem Solving ◽  
Control Group ◽  
Computation Method ◽  
Mental Computation ◽  
Quasi Experimental ◽  
Preparatory Year ◽  
Experimental Group

<p>The present study aimed to identify the effect of mental computation in improving the ability of university undergraduates in mathematical problem - solving. To achieve this aim, the quasi - experimental approach was used. Participants were (80) preparatory year students at Najran University in Saudi Arabia who were distributed into two main groups using the simple random sampling. One of these groups (N = 40) was assigned as the experimental group and was taught via the use of mental computation method. The second group (N = 40) was assigned as the control group and studied through the use of traditional methods. Mathematical problem - solving ability pre-test and posttest were applied to both groups. Findings showed that there were statistically significant differences between the two groups with regard to the mathematical problem- solving posttest in favor of the experimental group.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0994/a.php" alt="Hit counter" /></p>

scholarly journals Midwives’ skills in the application of non-pneumatic anti-shock garment for the management of postpartum haemorrhage in Ondo State, Nigeria

2018 ◽  
Vol 8 (1) ◽  
pp. 209
Author(s):  
Christiana Olanrewaju Sowunmi ◽  
Olufunke Mercy Iwaola ◽  
Gbemisola Bolanle Ogbeye
Keyword(s):  
Postpartum Haemorrhage ◽  
Rating Scale ◽  
Sampling Technique ◽  
Knowledge Score ◽  
Simple Random Sampling ◽  
Control Group ◽  
Post Intervention ◽  
Knowledge And Skills ◽  
Quasi Experimental ◽  
Experimental Group

Background: Non-pneumatic Anti-shock garment (NASG) has been identified as a device for effective management of postpartum haemorrhage especially in developing countries where maternal mortality is high. Hence, it is important that midwives are skilled and knowledgeable about its use. This study therefore assessed the midwives’ skills in the application of Non-Pneumatic Anti-Shock Garment (NASG) in the management of postpartum hemorrhage.Methods: This study adopted quasi-experimental research design. The study was done in two secondary health facilities in the state. Sixty-eight midwives participated in the study. Simple random sampling technique was used to select 37 and 31 midwives into experimental and control groups respectively. Written consent was obtained from all the participants. The study involved three stages; Pre-test, an intervention and a post test. Questionnaire and observation rating scale that elicited demographic characteristics, knowledge and skills on the application and removal of NASG was used to collect data pre and post intervention. Data was analyzed using descriptive and inferential statistics.Results: Mean knowledge score of midwives in the control group in the use of NASG in the management of PPH was found to be 10.32±4.17 compared with 12.24±5.05 in experimental group pre-intervention. There was a significant increase in knowledge and skills of NASG application, nonetheless the post intervention from experimental group had the highest increase from 6.32±4.97 to 17.14±0.95.Conclusions: Educational intervention enhanced skills of midwives in the use of NASG. Therefore, continuous education units in hospitals should include periodic training of midwives on the use of NASG.

In a Working Mood?

2008 ◽  
Vol 20 (1) ◽  
pp. 3-14 ◽  
Author(s):  
Leonard Reinecke ◽  
Sabine Trepte
Keyword(s):  
Cognitive Task ◽  
Prior Experience ◽  
Computer Game ◽  
Control Group ◽  
Mood Management ◽  
Management Processes ◽  
Quasi Experimental ◽  
Personal Media ◽  
Experimental Group ◽  
Subsequent Task

Abstract. This quasi-experimental study examined the effects of exposure to a computer game on arousal and subsequent task performance. After inducing a state of low arousal, participants were assigned to experimental or control conditions via self-selection. Members of the experimental group played a computer game for five minutes; subjects in the control group spent the same amount of time awaiting further instructions. Participants who were exposed to the computer game showed significantly higher levels of arousal and performed significantly better on a subsequent cognitive task. The pattern of results was not influenced by the participants' prior experience with the game. The findings indicate that mood-management processes associated with personal media use at the workplace go beyond the alteration of arousal and affect subsequent cognitive performance.

Brief psycho-education for caregivers of persons with first episode psychosis

2018 ◽  
Vol 9 (01) ◽  
Author(s):  
Praful Prabhuappa Kapse ◽  
Manisha Kiran
Keyword(s):  
First Episode Psychosis ◽  
First Episode ◽  
Control Group ◽  
Episode Psychosis ◽  
Study Results ◽  
Before And After ◽  
Quasi Experimental ◽  
Expressed Emotions ◽  
Experimental Group ◽  
Group Family

Caring for the persons with first episode psychosis is challenging and demanding. It may lead to the increased burden, expressed emotions among the caregivers. The numerous studies have shown that high burden and negative expressed emotions among caregivers can lead to early relapse in the patients with first episode psychosis. To evaluate the effects of the brief psychoeducation on the caregivers burden and expressed emotions. A quasi experimental - before and after with control group research design was adopted for the study. A total of 60 caregivers have participated in the study, of which 30 caregivers in experimental group and 30 caregivers in the control group. Family Burden Interview Schedule (Pai and Kapoor, 1981) and Attitude Questionnaire (Sethi et al., 1981) was used to assess caregiver's burden and expressed emotions. At end of the psychoeducation intervention, burden among caregivers and negative expressed emotions of the caregivers have significantly reduced. The positive expressed emotions have been increased. Study results demonstrates the importance of psychoeducation intervention in reducing the burden and negative expressed emotions.

Using Concept Oriented Reading Instruction (CORI) to Promote Students’ Reading Comprehension

2017 ◽  
Vol 2 (1) ◽  
pp. 42
Author(s):  
Hilma Suryani
Keyword(s):  
Reading Achievement ◽  
Reading Instruction ◽  
Reading Strategies ◽  
Posttest Score ◽  
T Test ◽  
Control Group ◽  
Quasi Experimental ◽  
Effective Reading Strategies ◽  
And Control ◽  
Experimental Group

The problem of this study is “Does Concept Oriented Reading Instruction (CORI) enhance students’ reading achievement?” The design of this study was quasi-experimental. The sample of this study was taken from the population by using purposive sampling. The experimental group consisted of 39 students while the control group consisted of 35 students. The data were collected by using two instruments; test and questionnaire. The test was given twice to each group in order to see whether or not there was significance difference of pretest and posttest either in experimental or control group and whether or not there was significance difference of experimental and control group in terms of their posttest score. To prove the hypothesis, the data from pretest and posttest of experimental and control group were analyzed by applying paired sample t-test and independent sample t-test. The calculation was run by using SPSS computer program. The result of the study shows there was significance difference of students’ reading achievement between experimental and control group. Besides, the use of CORI as reading strategies was proved as effective reading strategies to enhance students’ reading achievement. Keywords: Concept Oriented Reading Instruction; reading strategy; reading achievement

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