摘要：Penelitian ini bertujuan untuk meningkatkan kemampuan sains anak melalui pengembangan produk
berupa Lembar Kerja Anak (LKA) dengan menggunakan pendekatan konstruktivistik. Pengembangan ini
menggunakan model Recursive, Reflective, Design and Development (R2D2) dengan tiga tahapan yaitu
define focus, design and development focus, dan desimination focus. Instrumen pengumpulan data
menggunakan teknik wawancara, observasi, dan pemberian angket. Data dianalisis secara deskriptif dan
statistik dengan menghitung rata-rata dan persentase.Hasil uji coba produk menunjukkan bahwa: (1)
produk yang dikembangkan sudah sesuai dan layak untuk digunakan. (2) Hasil observasi kemampuan
sains pada aspek keterampilan mengamati diperoleh rata-rata nilai 95,75. Pada keterampilan
mengklasifikasi diperoleh rata-rata nilai 100. Pada sikap tanggungjawab diperoleh rata-rata nilai 92,91.
Pada hasil wawancara pada pemahaman konsep diperoleh rata-rata nilai 100. Data tersebut menunjukkan
bahwa kemampuan sains anak-anak yang diberi perlakuan dengan produk yang dikembangkan dapat
meningkat. Mereka mencapai skor yang melebihi standar, yaitu 2 bintang dengan nilai 66. Dengan kata
lain, LKA dengan menggunakan pendekatan konstruktivistik yang dikembangkan bermanfaat dalam
meningkatkan kemampuan sains anak.
其他摘要：This research aims to develop worksheet for children (LKA) by using Constructivist approach to enhance
the younger children’s science ability.The product was developed using Recursive, Reflective, Design and
Development (R2D2) model with three stages are define focus, design and development focus,
desimination focus. It used interview, observation, and questionnaires as instruments for data collection.
The data, then, were analyzed descriptively and statistically by computing the mean and the percentage.
The result of try out revealed that: (1) based on the expert of subject’s validation, the developed product
was appropriate.. (2) the result of observation in the field-testing stage showed that the younger children
got mean 95,75 for their ability to observe, 100 for the ability to classify, 92,91 for their responsibility,
and 100 for their understanding on the concepts of science.Those data revealed that the younger children
who treated using the developed product were able to boost their science ability since they could achieve
scores exceeding the standard, which are 2 stars. In other words, the Worksheet for Children (LKA) by
using Constructivist approach is helpful to improve the younger children’s science ability.
关键词：Perangkat Pembelajaran;Stretegi CTL;Hasil belajar
