The Development of creative thinking and problem-solving skill instrument of plant growth in high school

Creative thinking and problem-solving skills are needed to face the 21st century of 4.0 industrial revolution. Improving quality human resources era revolution must be developed in education. Biology as one subjects high school, especially plant growth development matters, allows develop creative because it there is a student project on development. It takes right instrument measure achievement problem solving learning, topic Two questions have been developed, namely for skills. The this was carried out through stages Research Development Borg Gall 1983. produced 10 essay measuring 8 question gets very decent expert validation criteria with score 91% - 97%. results test based Pearson Product Moment formula show that ten items valid significance level 0.05. reliability two instruments has result 0.82, above Cronbach's Alpha coefficient, which reliable instruments. Meanwhile, showed value 0.95.