Botani Tumbuhan Tinggi merupakan mata kuliah yang mengkaji tentang tumbuhan berbiji. Banyaknya konsep yang perlu dipelajari menjadikan mata kuliah ini sering dianggap sebagai mata kuliah hafalan. Oleh karena itu diperlukan media penunjang dalam prosesnya pembelajarannya. Flash card adalah salah satu alternatif media pembelajaran yang dapat dikembangkan dalam rangka menghadirkan berbagai spesies tumbuhan di alam ke dalam sebuah kartu yang memudahkan mahasiswa prinsip pengelompokkan berbagai spesies tanpa harus menghafal. Penelitian ini bertujuan untuk mengetahui validitas flash card spermatophyta sebagai penunjang pembelajaran Botani Tumbuhan Tinggi. Jenis penelitian ini adalah Research and Development, uji validitas flash card menggunakan Evaluasi Formatif Tessmer yang dibatasi pada tahap uji pakar. Hasil uji validasi ahli media diperoleh skor rata-rata sebesar 79,5% dan hasil validasi ahli materi diperoleh skor rata-rata sebesar 83,6%. Berdasarkan hasil skor rata-rata dapat disimpulkan bahwa flash card yang dikembangkan valid dan dapat digunakan sebagai media untuk menunjang pembelajaran Botani Tumbuhan Tinggi.
Intersection animals generally live on sandy shores or wet soil, living permanently by sticking, hiding away, and burrowing at the bottom of waters. The movement of intersection animals is limited to life in and at the bottom of the water, and is very sensitive to changes in the aquatic environment, so it can be used as a bioindicator of a waters. The aim of this research to identify the types and morphology of intersecting animals in Takisung Beach, Tanah Laut Regency. The study uses descriptive survey method with observation techniques for data collection. The research sample is an intersecting animal found in the research plot. The research plot was determined by the 6 point transect, distance of 5 m between points along 1,500 m. Data were analyzed exploratively using relevant libraries. The results showed that the intersection animals found consisted of 15 types namely: Aurelia aurita, Tachypleus tridentatus, Turritella communis, Cassis tuberosa, Oliva sayana, Murex trapa, Urosalpinx cinerea, Urosalpinx perrugata, Neritina violacea, Comarmondia gracilis, Cryptospira ventricosa, Erosaria miliaris, Anadra granosa, Paphia undulata, and Solen vaginalis.
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