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Effectiveness of Using Kosurasi Media to Improve Basic Math Skills in Children Aged 5-6 Years

BELIA Early Childhood Education Papers · Vol. 14 No. 1 (2025) · hlm. 75–87

DOI
10.15294/belia.v14i1.20094
ISSN
2686-3375, 2252-6382
Terbit
2025-05-28
Penerbit
Universitas Negeri Semarang
Bahasa
eng

Abstrak

One aspect of development that must be well-stimulated in early childhood is cognitive development. Cognitive development can be stimulated through children’s basic mathematical skills. These skills can be enhanced through the application of Kosurasi media. This study aims to determine the effect of applying Kosurasi media in improving basic mathematical skills in children aged 5-6 years at TK Dharma Wanita Bandung Wonosegoro. This study used a quantitative method with a one-group pretest-posttest research design. The population and sample consisted of 30 children aged 5-6 years at TK Dharma Wanita Bandung. Data collection was conducted through observation, interviews, and documentation. The collected data were analyzed using normality tests, homogeneity tests, paired sample t-test hypothesis testing, and finally, N-gain score tests with the help of the SPSS V.26 data processing application. The average pretest score was 76.10, while the average posttest score was 115.33. A paired sample t-test hypothesis test yielded a significance result of 0.000 lt; 0.05, indicating that H0 was rejected and Ha was accepted. This means there was a significant difference in the children’s basic mathematical skills before and after the intervention. Furthermore, the N-gain test produced a score of 57.76%, suggesting that the application of Kosurasi media has a moderately effective impact on improving the basic mathematical skills of children aged 5-6 years.

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  • State University of Semarang
  • Universitas Islam Negeri Salatiga
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Rekan penulisOrganisasiArtikel bersama
PutrianaState University of Semarang1
Sinthia Nurul FitriState University of Semarang1
Sri Setiyo RahayuState University of Semarang1
Lita LatianaState University of Semarang1
Eko HandoyoState University of Semarang1
Luqman AzharyUniversitas Islam Negeri Salatiga1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/belia/oai, pertama di-harvest 5 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">Effectiveness of Using Kosurasi Media to Improve Basic Math Skills in Children Aged 5-6 Years</dc:title>
	<dc:creator xml:lang="en">Riezky Ayu Saputri</dc:creator>
	<dc:creator xml:lang="en">Edi Waluyo </dc:creator>
	<dc:subject xml:lang="en">learning media, Kosurasi media, basic math, children aged 5-6 years</dc:subject>
	<dc:description xml:lang="en">One aspect of development that must be well-stimulated in early childhood is cognitive development. Cognitive development can be stimulated through children’s basic mathematical skills. These skills can be enhanced through the application of Kosurasi media. This study aims to determine the effect of applying Kosurasi media in improving basic mathematical skills in children aged 5-6 years at TK Dharma Wanita Bandung Wonosegoro. This study used a quantitative method with a one-group pretest-posttest research design. The population and sample consisted of 30 children aged 5-6 years at TK Dharma Wanita Bandung. Data collection was conducted through observation, interviews, and documentation. The collected data were analyzed using normality tests, homogeneity tests, paired sample t-test hypothesis testing, and finally, N-gain score tests with the help of the SPSS V.26 data processing application. The average pretest score was 76.10, while the average posttest score was 115.33. A paired sample t-test hypothesis test yielded a significance result of 0.000 lt; 0.05, indicating that H0 was rejected and Ha was accepted. This means there was a significant difference in the children’s basic mathematical skills before and after the intervention. Furthermore, the N-gain test produced a score of 57.76%, suggesting that the application of Kosurasi media has a moderately effective impact on improving the basic mathematical skills of children aged 5-6 years.
 </dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2025-05-28</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/belia/article/view/20094</dc:identifier>
	<dc:identifier>10.15294/belia.v14i1.20094</dc:identifier>
	<dc:source xml:lang="en">BELIA Early Childhood Education Papers; Vol. 14 No. 1 (2025); 75-87</dc:source>
	<dc:source>2686-3375</dc:source>
	<dc:source>2252-6382</dc:source>
	<dc:source>10.15294/belia.v14i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/belia/article/view/20094/4169</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 Early Childhood Education Papers</dc:rights>
</oai_dc:dc>