scholarly journals Pengembangan Media Ensiklopedia Bentuk dan Fungsi Tumbuhan Melatihkan Berpikir Kritis Siswa Sekolah Dasar

2020 ◽  
Vol 4 (2) ◽  
pp. 195-205
Author(s):  
Yeny Erawati ◽  
Raharjo ◽  
Utiya Azizah
Keyword(s):  
Critical Thinking ◽  
Quantitative Research ◽  
Discovery Learning ◽  
Validity And Reliability ◽  
Student Activities ◽  
Form And Function ◽  
Fourth Grade Students ◽  
Plant Form ◽  
And Function ◽  
D Model

Abstract: Encyclopedia media development research has a goal that is worth practicing the critical thinking of fourth grade students in terms of plant form and function in terms of validity, practicality, effectiveness. This type of quantitative research (R&D) model is Borg and Gall. Data collection techniques: observation, questionnaire, and test. Data analysis techniques: validity and reliability, student activities, lesson plans and critical thinking tests. The results of the Encyclopedia media validator are valid for use, tested at SDN MOJO VI / 225 with One Group Pretest-Postest Design. The results of Encyclopedia media validation> 96% valid, RPP implementation> 94% performed well with the Discovery Learning model, the effectiveness of the N-Gain critical thinking test 0.75 (high), positive response 97%. Conclusion Media Encyclopedia of Plant Form and Function is appropriate to be used to train Critical thinking. Abstrak: Penelitian pengembangan media Ensiklopedia memiliki tujuan  yang layak melatihkan berpikir kritis siswa kelas IV materi bentuk dan fungsi tumbuhan ditinjau kevalidan, kepraktisan, keefektifan. Jenis penelitian kuantitatif model (R&D) Borg and Gall. Teknik pengumpulan data: pengamatan, angket, dan tes. Teknik analisis data: validitas dan reliabilitas, aktivitas siswa, keterlaksanaan RPP dan tes berpikir kritis. Hasil validator media Ensiklopedia valid untuk digunakan, diuji di SDN MOJO VI/225 dengan One Group Pretest-Postest Design. Hasil validasi media Ensiklopedia >96% valid, keterlaksanaan RPP >94% terlaksana baik dengan model Discovery Learning,  keefektifan tes berpikir kritis N-Gain 0,75 (tinggi), respon positif 97%. Kesimpulan media Ensiklopedia Bentuk dan Fungsi Tumbuhan layak digunakan melatihkan berpikir Kritis.

scholarly journals The effectiveness of the use of the Android-based Carom games comic integrated to discovery learning in improving critical thinking and mathematical representation abilities

2021 ◽  
Vol 11 (2) ◽  
pp. 270
Author(s):  
Mega Septiana Ika Rahayu ◽  
Heru Kuswanto
Keyword(s):  
Critical Thinking ◽  
Effect Size ◽  
Quantitative Research ◽  
Discovery Learning ◽  
Medium Effect ◽  
Mathematical Representation ◽  
Second Phase ◽  
Validity And Reliability ◽  
Quasi Experimental ◽  
The Media

This research aims to reveal the effectiveness of the use of the Android-based carom games comic integrated to discovery learning (MIKIMOM) in improving critical thinking and mathematical representation in the teaching of physics. It is quantitative research with the   quasi experimental research design. It was conducted in two phases, with the first phase for empirical try out of the test and second phase for the application of MIKIMOM to reveal the effectiveness of the developed media in teaching. The empirical try out was conducted to 261 grade XI MIA students, while the application of the media was conducted to 32 grade X MIA students of State Senior High School (SSHS) 2 Banguntapan using the Power Points materials. The data were collected using a critical thinking and mathematical representation test which was valid and reliable according to the empirical testing. The data were analyzed using the QUEST program to see the validity and reliability of the test items, and the MANOVA test to see the effectiveness of the media. The research finding shows that MIKIMOM is effective in improving the critical thinking and mathematical representation of the students with the scores of 0.287 (large effect size) and 0.179 (medium effect size).

scholarly journals Developing Encyclopaedia Media on Form and Function of Plant to Train Elementary Students' Critical Thinking Skill

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Yeny Erawati ◽  
Raharjo Raharjo ◽  
Utiya Azizah
Keyword(s):  
Elementary School ◽  
Critical Thinking ◽  
Lesson Plan ◽  
Fourth Graders ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Validity And Reliability ◽  
Form And Function ◽  
The Media ◽  
And Function

This study aims to develop effective, feasible, and valid encyclopedia media on form and function of plant to train fourth-graders’ critical thinking skills in the elementary school. This study was research and development based on Borg and Gall theory and Research (R& D) model. Data were collected using observation, questionnaires, and tests and analyzed using media validity and reliability, student activity, implementation of lesson plans, and tests of critical thinking skills. After that, the media was validated by experts. The results of the expert validation showed that the Encyclopedia media was valid for use. Furthermore, the media was tested on fourth-graders of SDN KERTAJAYA V / 211 Surabaya using One Group Pretest-Posttest Design. The limited scale trial results showed (1) the validation of the developed Encyclopedia media were 96% valid categories, (2) the developed media were tested in term of lesson plan implementation were 94% with well-implemented category and student activities were suitable to Discovery Learning model, (3) the effectiveness of the Encyclopedia media in terms of students’ critical thinking skills tests showed that average N-Gain was 0.75 (high) and positive response of 97% was given by students. Therefore, it can be concluded that the Encyclopedia media on Form and Function of Plant is feasible to train Critical Thinking Skills of Elementary School Students.

Tropical Alpine Environments: Plant Form and Function.

1997 ◽  
Vol 22 (3) ◽  
pp. 592
Author(s):  
Henrik Balslev ◽  
Philip W. Rundel ◽  
Alan P. Smith ◽  
F. C. Meinzer
Keyword(s):  
Form And Function ◽  
Tropical Alpine ◽  
Plant Form ◽  
And Function ◽  
Alpine Environments

scholarly journals PhenoSpace: A Shiny application to visualize trait data in the phenotypic space of the global spectrum of plant form and function

2021 ◽  
Vol 11 (4) ◽  
pp. 1526-1534
Author(s):  
Jules Segrestin ◽  
Kevin Sartori ◽  
Marie‐Laure Navas ◽  
Jens Kattge ◽  
Sandra Díaz ◽  
...  
Keyword(s):  
Form And Function ◽  
Plant Form ◽  
And Function ◽  
Shiny Application

Environmental–biomechanical reciprocity and the evolution of plant material properties

2021 ◽  
Author(s):  
Karl J Niklas ◽  
Frank W Telewski
Keyword(s):  
Physical Environment ◽  
Structural Changes ◽  
Abiotic Factors ◽  
Biotic Interactions ◽  
Cellular Solids ◽  
Form And Function ◽  
Evolutionary Innovation ◽  
Plant Form ◽  
And Function ◽  
Abiotic Environmental Factors

Abstract Abiotic–biotic interactions have shaped organic evolution since life first began. Abiotic factors influence growth, survival, and reproductive success, whereas biotic responses to abiotic factors have changed the physical environment (and indeed created new environments). This reciprocity is well illustrated by land plants who begin and end their existence in the same location while growing in size over the course of years or even millennia, during which environment factors change over many orders of magnitude. A biomechanical, ecological, and evolutionary perspective reveals that plants are (i) composed of materials (cells and tissues) that function as cellular solids (i.e. materials composed of one or more solid and fluid phases); (ii) that have evolved greater rigidity (as a consequence of chemical and structural changes in their solid phases); (iii) allowing for increases in body size and (iv) permitting acclimation to more physiologically and ecologically diverse and challenging habitats; which (v) have profoundly altered biotic as well as abiotic environmental factors (e.g. the creation of soils, carbon sequestration, and water cycles). A critical component of this evolutionary innovation is the extent to which mechanical perturbations have shaped plant form and function and how form and function have shaped ecological dynamics over the course of evolution.

Herbaceous monocot plant form and function along a tropical rain-forest light gradient: a reversal of dicot strategy

2009 ◽  
Vol 25 (1) ◽  
pp. 103-106 ◽  
Author(s):  
Nathan G. Swenson
Keyword(s):  
Tropical Forests ◽  
Environmental Gradients ◽  
Plant Performance ◽  
Seed Plants ◽  
Form And Function ◽  
Light Gradient ◽  
Whole Plant ◽  
Plant Form ◽  
And Function ◽  
High Degree

Whole plant form and function vary spectacularly across the seed plants. In recent years, plant evolutionary ecologists have begun to document this diversity on large geographic scales by analysing ‘functional traits’ that are indicative of whole plant performance across environmental gradients (Swenson & Enquist 2007, Wright et al. 2004). Despite the high degree of functional diversity in tropical forests, convergence in function does occur locally along successional or light gradients (Bazzaz & Pickett 1980, Swaine & Whitmore 1988).

scholarly journals Unexpected cryptic species among streptophyte algae most distant to land plants

2021 ◽  
Vol 288 (1963) ◽  
Author(s):  
Iker Irisarri ◽  
Tatyana Darienko ◽  
Thomas Pröschold ◽  
Janine M. R. Fürst-Jansen ◽  
Mahwash Jamy ◽  
...  
Keyword(s):  
Land Plants ◽  
Comparative Genomic ◽  
Future Studies ◽  
Form And Function ◽  
Genomic Studies ◽  
Plant Form ◽  
Phylogenomic Analyses ◽  
And Function ◽  
Shed Light ◽  
Green Lineage

Streptophytes are one of the major groups of the green lineage (Chloroplastida or Viridiplantae). During one billion years of evolution, streptophytes have radiated into an astounding diversity of uni- and multicellular green algae as well as land plants. Most divergent from land plants is a clade formed by Mesostigmatophyceae, Spirotaenia spp. and Chlorokybophyceae. All three lineages are species-poor and the Chlorokybophyceae consist of a single described species, Chlorokybus atmophyticus. In this study, we used phylogenomic analyses to shed light into the diversity within Chlorokybus using a sampling of isolates across its known distribution. We uncovered a consistent deep genetic structure within the Chlorokybus isolates, which prompted us to formally extend the Chlorokybophyceae by describing four new species. Gene expression differences among Chlorokybus species suggest certain constitutive variability that might influence their response to environmental factors. Failure to account for this diversity can hamper comparative genomic studies aiming to understand the evolution of stress response across streptophytes. Our data highlight that future studies on the evolution of plant form and function can tap into an unknown diversity at key deep branches of the streptophytes.

Tropical Alpine Environments: Plant Form and Function.

1995 ◽  
Vol 83 (3) ◽  
pp. 555
Author(s):  
J. C. Lovett ◽  
P. W. Rundel ◽  
A. P. Smith ◽  
F. C. Meinzer
Keyword(s):  
Form And Function ◽  
Tropical Alpine ◽  
Plant Form ◽  
And Function ◽  
Alpine Environments
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