AbstrakPenelitian ini bertujuan untuk mengetahui validitas lembar kerja siswa berbasis problem based learning pada materi keanekaragaman hayati untuk SMA. Penelitian ini penelitian pengembangan menggunakan model 4 terdiri atas 4 tahap pengembangan yaitu; Define, Design, Develop, dan Disseminate. Penelitian ini hanya sampai pada tahap develop yaitu sampai pada tahap validitas. Penelitian dilaksanakan pada bulan Agustus 2015. Penelitian ini dilaksanakan di STKIP PGRI Sumatera Barat dan SMAN 3 Padang. Data yang dikumpulkan dalam penelitian ini adalah data hasil uji validitas LKS oleh Dosen dan Guru. yang digunakan adalah angket validitas. Data pada penelitian ini dianalisis dengan menggunakan statistika deskriptif dalam bentuk persentase. Hasil validitas LKS oleh dosen dan guru diperoleh rata-rata 84,42 % dengan kriteria sangat valid. AbstractThe research was to find out the problem based learning based student's worksheet validity on biodiversity material for Senior High School. The method used was a research and development (R&D) using 4-D model. The model has 4 stages of development, i.e. define, design, develop and disseminate. The research was conducted into develop only, i.e. in the validity stage. It was conducted in August 2015 in STK West Sumatera and SMAN 3 Padang. Data collected in the research were the validity test result of Student's Worksheet from lecturer and teacher. Instrument used to collect the data was questionnaire. The questionnaire was filled by lecturer and teacher. Data were analyzed by using descriptive statistic in the form of percentage. The validity result of student's worksheet from lecturer and teacher shows that the average grade is 84,42 percent in the very valid criteria. Data yang dikumpulkan dalam penelitian ini adalah uru. Instrumen Data pada penelitian ini dianalisis dengan menggunakan statistika deskriptif dalam dosen dan guru rata 84,42 % dengan kriteria sangat valid.The research was to find out the problem based learning based student's worksheet validity on biodiversity material for Senior used was a research and D model. The model has 4 stages of development, i.e. define, design, develop and disseminate. The research was conducted into develop only, i.e. in the validity stage. It was conducted in August 2015 in STKIP PGRI West Sumatera and SMAN 3 Padang. Data collected in the research were the validity test result of Student's Worksheet from lecturer and teacher. Instrument used to collect the data was questionnaire. The questionnaire was filled by lecturer her. Data were analyzed by using descriptive statistic in the form of percentage. The validity result of student's worksheet from lecturer and teacher shows that the average

AbstrakPenelitian ini bertujuan untuk mengetahui validitas lembar kerja siswa berbasis problem based learning pada materi keanekaragaman hayati untuk SMA. Penelitian ini penelitian pengembangan menggunakan model 4 terdiri atas 4 tahap pengembangan yaitu; Define, Design, Develop, dan Disseminate. Penelitian ini hanya sampai pada tahap develop yaitu sampai pada tahap validitas. Penelitian dilaksanakan pada bulan Agustus 2015. Penelitian ini dilaksanakan di STKIP PGRI Sumatera Barat dan SMAN 3 Padang. Data yang dikumpulkan dalam penelitian ini adalah data hasil uji validitas LKS oleh Dosen dan Guru. yang digunakan adalah angket validitas. Data pada penelitian ini dianalisis dengan menggunakan statistika deskriptif dalam bentuk persentase. Hasil validitas LKS oleh dosen dan guru diperoleh rata-rata 84,42 % dengan kriteria sangat valid. AbstractThe research was to find out the problem based learning based student's worksheet validity on biodiversity material for Senior High School. The method used was a research and development (R&D) using 4-D model. The model has 4 stages of development, i.e. define, design, develop and disseminate. The research was conducted into develop only, i.e. in the validity stage. It was conducted in August 2015 in STK West Sumatera and SMAN 3 Padang. Data collected in the research were the validity test result of Student's Worksheet from lecturer and teacher. Instrument used to collect the data was questionnaire. The questionnaire was filled by lecturer and teacher. Data were analyzed by using descriptive statistic in the form of percentage. The validity result of student's worksheet from lecturer and teacher shows that the average grade is 84,42 percent in the very valid criteria. Data yang dikumpulkan dalam penelitian ini adalah uru. Instrumen Data pada penelitian ini dianalisis dengan menggunakan statistika deskriptif dalam dosen dan guru rata 84,42 % dengan kriteria sangat valid.The research was to find out the problem based learning based student's worksheet validity on biodiversity material for Senior used was a research and D model. The model has 4 stages of development, i.e. define, design, develop and disseminate. The research was conducted into develop only, i.e. in the validity stage. It was conducted in August 2015 in STKIP PGRI West Sumatera and SMAN 3 Padang. Data collected in the research were the validity test result of Student's Worksheet from lecturer and teacher. Instrument used to collect the data was questionnaire. The questionnaire was filled by lecturer her. Data were analyzed by using descriptive statistic in the form of percentage. The validity result of student's worksheet from lecturer and teacher shows that the average