A value of concrete learning materials in adolescence.

2011 ◽  
pp. 95-122 ◽  
Author(s):  
Kristen P. Blair ◽  
Daniel L. Schwartz
Keyword(s):  
Learning Materials ◽  
A Value

scholarly journals Analisis Kompetensi Profesional Guru PAUD Kabupaten Siak Provinsi Riau

2017 ◽  
Vol 4 (2) ◽  
pp. 103
Author(s):  
Febrialismanto Febrialismanto
Keyword(s):  
Success Factors ◽  
Professional Competence ◽  
Educational Process ◽  
Learning Materials ◽  
Field Development ◽  
Critical Success ◽  
Health And Nutrition ◽  
A Value ◽  
Concepts Of Health ◽  
Basic Concepts

<p>Teachers are the critical success factors of an educational process. Teachers must have competence in educating one of the competencies of teachers is professional competence. Professional competence describes the ability of teachers to master learning materials. The purpose of this study is to analyze the competence of paud teachers who have completed the S1 study located in Siak regency. The method used is quantitative decryption by conducting tests on 36 teachers. From the results of the research can be seen that the indicators included in the low category is Mastering the basic concepts of health and nutrition as a means of development for each field of development of children with a value of 44.44%, understand the ability of children kindergarten in every field of development 43.52%, and understand the progress of children in every field development in kindergarten 49.07%. From the results of this study can be seen that the three indicators are categorized as low compared with other indicators of professional competence.<strong><em></em></strong></p>

scholarly journals THE EFFECTIVENESS OF THE ACTIVE LEARNING STRATEGY OF THE FIRING LINE TYPE IS VARIED WITH MEANINGFUL SCRIPT ON RESULTS AND ACTIVITY OF STUDENT LEARNING MATERIALS ON HUMAN REPRODUCTIVE SYSTEM IN CLASS XI IPA SMA PARULIAN 1 MEDAN

2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Sopan Sopian Panggabean ◽  
Hendro Pranoto ◽  
Adriana Y.D LumbanGaol
Keyword(s):  
Active Learning ◽  
Student Learning ◽  
Learning Strategy ◽  
Human Reproduction ◽  
Learning Materials ◽  
A Value ◽  
Firing Line ◽  
Active Learning Strategy ◽  
Academic Year ◽  
Line Type

This research is aimed at determining the effectiveness of the active learning strategy of The FiringLine type is varied with meaningful script on results and activity of student learning materials on humanreproductive system in class XI IPA SMA Parulian 1 Medan Academic Year 2016/2017. This type of research ispre-experiment, where the population in this study are the students of class XI IPA SMA Parulian 1 Medan with57 students. Sampling was performed by using the random sampling technique. The result show that studentmastery level classified in the category of high with a value of 80, students’ learning completeness classified inthe category of complete with a value of 89.3%, and student learning activities classified in the category ofactive with a value of 77.60. So it can be concluded that the active learning strategy of The Firing Line type isvaried with meaningful script effectively used on the material of the human reproduction system in class XI IPASMA Parulian 1 Medan Academic Year 2016/2017.Key Words : Active Learning Strategy Of The Firing Line Type, meaningful script, activity learning.

Efektivitas Bahan Ajar Berbasis Android terhadap Hasil Belajar

GERAM ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 44-49 ◽  
Author(s):  
Sri Wahyuni ◽  
Fauzul Etfita
Keyword(s):  
Learning Outcomes ◽  
Random Sampling ◽  
Score Test ◽  
Theory And Practice ◽  
Sampling Techniques ◽  
Learning Material ◽  
Learning Materials ◽  
A Value ◽  
Post Test ◽  
Materials Used

Learning material is one of the crucial elements that must be considered in learning. However, learning materials used are still conventional in the form of hardcopy and softcopy, so students are reluctant to read. Specifically, in the English for office course, simple and practical learning material is needed so that they can support both theory and practice. Related to this problem, the purpose of this study was to analyze the effect of android-based learning material on learning achomplisment and its effectiveness of the implementation of android-based learning materials in improving learning outcomes. The study was conducted at Universitas Islam Riau on students who took English for office courses. Through random sampling techniques determined the sample of the experimental class and the control class. Data was collected through pre-test and post-test distribution in the two sample classes. Based on several stages of data analysis, the data is normally distributed and the data variants are homogeneous. Furthermore, paired sample t-test, showing a significance value of 0.039 <0.05, it can be concluded that there are differences in the average learning outcomes for pre-test and post-test in the classes taught by applying android-based learningg materials. While the N-Gain score test revealed that the implementation of android-based learning material was quite effective to improve learning outcomes with a value of 63.00%. So it can be concluded that, there is an influence and quite effective android-based learning materials on learning achomplisment.

Observations of the Thermal Decomposition of Brucite

1968 ◽  
Vol 26 ◽  
pp. 446-447
Author(s):  
P. L. Burnett ◽  
W. R. Mitchell ◽  
C. L. Houck
Keyword(s):  
Thermal Decomposition ◽  
Magnesium Oxide ◽  
Basal Plane ◽  
Magnesium Ions ◽  
A Value ◽  
Reaction Proceeds

Natural Brucite (Mg(OH)2) decomposes on heating to form magnesium oxide (MgO) having its cubic ﹛110﹜ and ﹛111﹜ planes respectively parallel to the prism and basal planes of the hexagonal brucite lattice. Although the crystal-lographic relation between the parent brucite crystal and the resulting mag-nesium oxide crystallites is well known, the exact mechanism by which the reaction proceeds is still a matter of controversy. Goodman described the decomposition as an initial shrinkage in the brucite basal plane allowing magnesium ions to shift their original sites to the required magnesium oxide positions followed by a collapse of the planes along the original <0001> direction of the brucite crystal. He noted that the (110) diffraction spots of brucite immediately shifted to the positions required for the (220) reflections of magnesium oxide. Gordon observed separate diffraction spots for the (110) brucite and (220) magnesium oxide planes. The positions of the (110) and (100) brucite never changed but only diminished in intensity while the (220) planes of magnesium shifted from a value larger than the listed ASTM d spacing to the predicted value as the decomposition progressed.

Field-assisted ionization theory for microscopists

1994 ◽  
Vol 52 ◽  
pp. 820-821
Author(s):  
Patrick P. Camus
Keyword(s):  
Electric Field ◽  
Electron Tunneling ◽  
Ionization Probability ◽  
Critical Distance ◽  
Tunneling Probability ◽  
Field Ionization ◽  
Radius Of Curvature ◽  
Field Evaporation ◽  
A Value ◽  
Ion Emission

The theory of field ion emission is the study of electron tunneling probability enhanced by the application of a high electric field. At subnanometer distances and kilovolt potentials, the probability of tunneling of electrons increases markedly. Field ionization of gas atoms produce atomic resolution images of the surface of the specimen, while field evaporation of surface atoms sections the specimen. Details of emission theory may be found in monographs.Field ionization (FI) is the phenomena whereby an electric field assists in the ionization of gas atoms via tunneling. The tunneling probability is a maximum at a critical distance above the surface,xc, Fig. 1. Energy is required to ionize the gas atom at xc, I, but at a value reduced by the appliedelectric field, xcFe, while energy is recovered by placing the electron in the specimen, φ. The highest ionization probability occurs for those regions on the specimen that have the highest local electric field. Those atoms which protrude from the average surfacehave the smallest radius of curvature, the highest field and therefore produce the highest ionizationprobability and brightest spots on the imaging screen, Fig. 2. This technique is called field ion microscopy (FIM).

Vitamin A Value of Plant Food Provitamin A - Evaluated by the Stable Isotope Technologies

2014 ◽  
Vol 84 (Supplement 1) ◽  
pp. 25-29 ◽  
Author(s):  
Guangwen Tang
Keyword(s):  
Stable Isotope ◽  
Vitamin A ◽  
Provitamin A ◽  
Animal Origin ◽  
Plant Food ◽  
Plant Foods ◽  
A Value ◽  
Provitamin A Carotenoids ◽  
Β Carotene

Humans need vitamin A and obtain essential vitamin A by conversion of plant foods rich in provitamin A and/or absorption of preformed vitamin A from foods of animal origin. The determination of the vitamin A value of plant foods rich in provitamin A is important but has challenges. The aim of this paper is to review the progress over last 80 years following the discovery on the conversion of β-carotene to vitamin A and the various techniques including stable isotope technologies that have been developed to determine vitamin A values of plant provitamin A (mainly β-carotene). These include applications from using radioactive β-carotene and vitamin A, depletion-repletion with vitamin A and β-carotene, and measuring postprandial chylomicron fractions after feeding a β-carotene rich diet, to using stable isotopes as tracers to follow the absorption and conversion of plant food provitamin A carotenoids (mainly β-carotene) in humans. These approaches have greatly promoted our understanding of the absorption and conversion of β-carotene to vitamin A. Stable isotope labeled plant foods are useful for determining the overall bioavailability of provitamin A carotenoids from specific foods. Locally obtained plant foods can provide vitamin A and prevent deficiency of vitamin A, a remaining worldwide concern.

Assessment of Cognitive Load in Multimedia Learning Using Dual-Task Methodology

2002 ◽  
Vol 49 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Roland Brünken ◽  
Susan Steinbacher ◽  
Jan L. Plass ◽  
Detlev Leutner
Keyword(s):  
Cognitive Load ◽  
Dual Task ◽  
Cognitive Load Theory ◽  
Multimedia Learning ◽  
Learning Systems ◽  
Learning Materials ◽  
New Approach ◽  
Direct Assessment ◽  
Load Theory ◽  
Audiovisual Presentation

Abstract. In two pilot experiments, a new approach for the direct assessment of cognitive load during multimedia learning was tested that uses dual-task methodology. Using this approach, we obtained the same pattern of cognitive load as predicted by cognitive load theory when applied to multimedia learning: The audiovisual presentation of text-based and picture-based learning materials induced less cognitive load than the visual-only presentation of the same material. The findings confirm the utility of dual-task methodology as a promising approach for the assessment of cognitive load induced by complex multimedia learning systems.

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