Abstract-A meaningful science teaching focuses on reconstructing knowledge and experience. One way for reconstructing knowledge is by using science process skill. It is an ability of students to solve problems. This research aimed to measure science process skills of first grade students at Biology Education Department. This research was descriptive research involving all of first grade students in Biology Department in academic year 2016/2017. The results showed that the easiest aspect for basic skill was measuring data and the most difficult aspects were classifying and inferring data. The easiest aspect for integrated skill was making data for investigation and the most difficult aspect were analyze investigation and identifying of variables.

Abstract-Development of teaching material is very necessary because it will make valid, practical, and effective teaching material. The purpose of this research was to develop the teaching material in the form of valid field research based handout on palm tree population structure in Rampah The results showed that the validation score of teaching materials in the form of handouts feasibility aspects of the content was 88.23% (highly valid), the presentation of the feasibility aspects was 91.66% (highly valid), feasibility aspects of language was 93.26% (highly valid) and students test legibility was 87.50% (excellent). From the assessment of expert validation and test of legibility students the teaching materials, the handout on palm tree population structure (Arenga pinnata Merr.) in Rampah Manjangan waterfall Loksado was highly valid and very well used as a supplementary material on ecological plants population concepts in Biology Education Department, Universitas Lambung Mangkurat, Banjarmasin.

Each station was divided into two zones that were the left and the right sides of the river. Shrimps found were identified by using the shrimp-identification books and then were analyzed by using formula. The results of this research showed that there were four species of the shrimps which were found in all stations, namely : Palaemon concinnus, Metapenaeus monoceros, Macrobrachium rosenbergi, and Macrobranchium acanthurus. The value of diversity indexes of Station I, II, and III respectively were 0,271, 0,693, and 0,271 or diversity indexes of the shrimps were low (H' = <1). The results of this research will be developed become teaching material in form of a leaflet which were valid and reliable according to the validators.