Development and Application of a Two-Tier Diagnostic Test for High School Students’ Understanding of Flowering Plant Growth and Development

2004 ◽  
Vol 2 (2) ◽  
pp. 175-199 ◽  
Author(s):  
Sheau-Wen Lin
Author(s):  
Jagdish Rathod

Stress situations such as study tight deadlines or important social obligations. Of fen makes nervous or fearful. In high school students they facing educational and social problems. This period is already growth and development period at this time so many body changes occurs in the students body. Individuals with anxiety disorder experience excessive anxiety. Fear as worry, causing them either to anode situations. The result of survey on the basis of anxiety disorder in high school students. Is very high in ahmednagar tarakpur in some area. They need special treatments for educational development.


2019 ◽  
Vol 1 (2) ◽  
pp. 84-96
Author(s):  
Noor Lailah Sahlan

The purpose of this study is to determine the extent to which students 'science process skills in Biology subjects can be increased through the use of Guided Inquiry learning models and to know students' responses to learning that has been implemented as a reflection of learning. This research was conducted at SMAN 1 Kota Tangerang Selatan on students of class XII Science. This research uses Classroom Action Research (CAR)  methods. The results showed that the use of Guided Inquiry learning models in Biology concepts of plant growth and development concepts can provide positive and significant improvements to students' science process skills.


2014 ◽  
Vol 13 (4) ◽  
pp. 653-665 ◽  
Author(s):  
Julie R. Bokor ◽  
Jacob B. Landis ◽  
Kent J. Crippen

Basic phylogenetics and associated “tree thinking” are often minimized or excluded in formal school curricula. Informal settings provide an opportunity to extend the K–12 school curriculum, introducing learners to new ideas, piquing interest in science, and fostering scientific literacy. Similarly, university researchers participating in science, technology, engineering, and mathematics (STEM) outreach activities increase awareness of college and career options and highlight interdisciplinary fields of science research and augment the science curriculum. To aid in this effort, we designed a 6-h module in which students utilized 12 flowering plant species to generate morphological and molecular phylogenies using biological techniques and bioinformatics tools. The phylogenetics module was implemented with 83 high school students during a weeklong university STEM immersion program and aimed to increase student understanding of phylogenetics and coevolution of plants and pollinators. Student response reflected positive engagement and learning gains as evidenced through content assessments, program evaluation surveys, and program artifacts. We present the results of the first year of implementation and discuss modifications for future use in our immersion programs as well as in multiple course settings at the high school and undergraduate levels.


2019 ◽  
Vol 23 (2) ◽  
pp. 144-155
Author(s):  
Minhajjul Abidin ◽  
Heri Retnawati

This research is aimed at describing (1) the characteristics of items about a diagnostic test of circle material in mathematics, (2) how significant the percentage of students' types of errors in answering the questions, and (3) the diagnosis of students' difficulties in answering the questions based on DINA model. This research is quantitative descriptive research involving eighth graders of junior high school in East Lombok regency as the population. The sample was chosen by a proportionate random sampling technique, consisting of 105 students for preliminary field testing and 416 students for main field testing. The instrument of this study was a diagnostic test using a four-option multiple-choice format. Data on students' responses were analyzed using the R program with CDM (Cognitive Diagnostic Model) DINA model, which requires underlying attributes for each item. The results show that: (1) the diagnostic test instrument had met the qualitative and quantitative content validity; (2) the percentage of students' answers retrieved from the conceptual error is 18.47%, 9.99% is interpretation error, the procedural error is 7.80%, and counting error is 14.57%; (3) based on the results of the analysis with DINA model, students' error in answering the questions of the circle material in mathematics are dominantly caused by students' lack of mastery on solving problems associated to the circumference of a circle, that is, (A28) the ability to calculate the length of a path, and (A29) the ability to calculate many rounds on wheels.


2017 ◽  
Vol 4 (1) ◽  
pp. 23-28
Author(s):  
I Ketut Buana Yasa ◽  
Didik Setiawan ◽  
M.Adreng Pamungkas

Introduction: High rates of drug abuse, especially Amfetamine, Marijuana dan Morfin in Indonesia, including vulnerable areas where circulation is the island of Bali. One of which is the area of Badung, where the victims and targets of drug dealers are adolescents aged 11-24 years. drug should be used for treatment and research, But for various reasons. Drug addicts have been abused. The reasons this research is to identify compounds amfetamine, marijuana and morfin in the urine high school students of class XI language in “X” district of Badung with a rapid diagnostic test. Method: used in this research rapid diagnostic test. Samples were taken through the draw of 2 classes, each 0f which was taken 16 people to obtain 32 urine samples,result from 32 urine samples with a total of 12 women, the number of mem as many as 20 people aged 16-18. With the acknowledgment of not taking drugs. Result: obtained 100% absence amfetamine, marijuana and morfin on the urine sample. Discussion:  School advised always to provide guidance on how to avoid the use of drugs to students and parents.


2013 ◽  
Vol 14 (1) ◽  
Author(s):  
Sri Winarni ◽  
Ade Ismayani ◽  
Fitriani Fitriani

Misconceptions in stoichiometry of senior high school students grade X were studied through a qualitative research using a diagnostic test in the form of multiple choices with reason on 22 students from grade X-3. The validity of the instrument found was 83%. Meanwhile the realiability found was 0,61. The misconceptions found were in: (a) reaction equation is the equality number of coefficient in reactant and in the product for about 13,63%; (b) index number of an atom in a compound is the same as in free element for about 9,09%; (c) the molecule symbol of element in the form of gass has 2 index number for about 27,27%; (d) the greater number of coefficient reaction shows the greater number of substances involved in a reaction for about 9,09%; (e) no matter how many mols in a compound, it has a fixed molecules, 6,2 x 1023 molecules, for about 4,54%; (f) define atom the same as molecules, for about 9,09%; and (g) for P and T that have the same comparison of gass volume that involves in a reaction serves as the smallest coefficient.


2021 ◽  
Vol 3 (1) ◽  
pp. 1-15
Author(s):  
Yuxian Huang ◽  
Ying Zhou ◽  
Yong Li

This research analyzes the types and reasons of students'  mistakes in solving probability and the analysis statistics problems by qualitative research method. The subjects were 20 senior High school students from a senior high school in Guangxi, China. The data were collected through the student diagnostic test. The students' answers were analyzed by using O'Connel's  analysis. The results show that the proportion of misunderstood problems is 48.18% at the largest proportion, and the proportion of computational errors is next, accounting for 36.36%. The proportion of procedural errors is the least, accounting for 15.45%. As we all know, there are many reasons for the above mistakes., so teachers can find some solutions to overcome these mistakes.


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