Teaching the Law of Cosines in Advanced 10th Grade Geometry Textbook by Way of Problem-Based Learning in Vietnam

2019 ◽  
Vol 18 (11) ◽  
pp. 397-413
Author(s):  
Ngoc-Giang Nguyen
Keyword(s):  
Problem Based Learning ◽  
10Th Grade ◽  
The Law ◽  
Law Of Cosines

Developing and Applying the Law of Cosines

2020 ◽  
pp. 274-288
Author(s):  
Vecihi S. Zambak ◽  
Budi Mulyono
Keyword(s):  
Instructional Technology ◽  
Ninth Grade ◽  
Steam Education ◽  
The Law ◽  
Law Of Cosines ◽  
Ninth Grade Students ◽  
Space Sciences ◽  
The Given ◽  
Support Students

In history, geometry was founded more as a practical endeavor than a theoretical one. Early developments of the branch portray philosophers' attempts to make sense of their surroundings, including the measurement of distances on earth and in space. Such a link between earth and space sciences and geometry motivated us to develop and implement a multidisciplinary lesson focusing on the conceptual understanding of the law of cosines in the context of astronomy. In our content specific STEAM lesson, the authors aimed to facilitate an understanding of the law of cosines in ninth grade students, and then apply the law in a star map task to find approximate distances between stars. The second part of the lesson also included the use of an instructional technology to support students' work with the star map task. In the conclusion, the authors discuss possible ways to improve the quality of their STEAM education efforts for the given context.

Proof without Words: The Law of Cosines

1990 ◽  
Vol 63 (5) ◽  
pp. 342-342 ◽  
Author(s):  
Sidney H. Kung
Keyword(s):  
The Law ◽  
Law Of Cosines

Proof without Words: The Law of Cosines via Ptolemy's Theorem

1992 ◽  
Vol 65 (2) ◽  
pp. 103 ◽  
Author(s):  
Sidney H. Kung
Keyword(s):  
The Law ◽  
Law Of Cosines ◽  
Ptolemy’S Theorem

Note on the Law of Cosines

1951 ◽  
Vol 58 (10) ◽  
pp. 698 ◽  
Author(s):  
S. L. Thompson
Keyword(s):  
The Law ◽  
Law Of Cosines

Transforming the law of cosines for computational purposes

1955 ◽  
Vol 48 (5) ◽  
pp. 308-309
Author(s):  
Benjamin Greenberg
Keyword(s):  
The Law ◽  
Law Of Cosines

The law of cosines has always frustrated those teachers who wish to use it computationally. The transformation developed in this paper makes it more amenable to the use of logarithmic computation.

Proof without Words: The Law of Cosines

1990 ◽  
Vol 63 (5) ◽  
pp. 342 ◽  
Author(s):  
Sidney H. Kung
Keyword(s):  
The Law ◽  
Law Of Cosines

scholarly journals ALGEBRAIC DERIVATION OF THE LAW OF COSINES

1917 ◽  
Vol 17 (3) ◽  
pp. 244-244
Author(s):  
Albert Babbitt
Keyword(s):  
The Law ◽  
Law Of Cosines

scholarly journals Pengaruh model pembelajaran berbasis masalah terhadap motivasi belajar dan hasil belajar PPKn

2017 ◽  
Vol 14 (1) ◽  
pp. 10-22
Author(s):  
Mohammad Wahyu Kurniawan ◽  
Wuri Wuryandani
Keyword(s):  
Learning Process ◽  
Problem Based Learning ◽  
Control Group ◽  
Motivation To Learn ◽  
Learning Method ◽  
Control Group Design ◽  
Group Design ◽  
10Th Grade ◽  
Quasi Experiment

The aims of this study were to analyze: (1) the significance effects of the Problem-Based Learning (PBL) Method on the motivation to learn PPKn, (2) the significance effects of PBL Method on PPKn learning result, (3) the significance effects of PBL on the result and motivation of the students in PPKn learning process, and (4) to find out the effectiveness among PBL Method, the Inquiry and Conventional Learning Method in learning PPKn. This research was quasi experiment by pretest-posttest control group design. The participants were the 10th grade of SMA Negeri 1 Pacet Mojokerto 2016/2017 year academic. The results: (1) there were significance effects of the PBL Method on the motivation to learn PPKn; (2) there were significance effects of PBL Method on PPKn learning result; (3) there were significance effects of Problem-Based Learning on the result and motivation to the students in PPKn learning process; (4) the most effective method of learning PPKn was Problem-Based Learning.

scholarly journals ԼՐԻՎ ՄԵԽԱՆԻԿԱԿԱՆ ԷՆԵՐԳԻԱՅԻ ՊԱՀՊԱՆՄԱՆ ՕՐԵՆՔԻ ՍՏՈՒԳՄԱՆ ՄԻ ԼԱԲՈՐԱՏՈՐ ՓՈՐՁԻ ՄԱՍԻՆ / ABOUT A LABORATORY EXPERIMENT TO TEST THE CONSERVATION LAW OF FULL MECHANICAL ENERGY

2021 ◽  
pp. 251-260
Author(s):  
H. Drmeyan ◽  
V. Manukyan ◽  
G. Nikoghosyan
Keyword(s):  
Laboratory Experiment ◽  
Conservation Law ◽  
Mechanical Energy ◽  
Numerical Results ◽  
Laboratory Work ◽  
10Th Grade ◽  
The Law ◽  
Physics Course

Հոդվածում ներկայացվում է ֆիզիկայի դպրոցական դասընթացի շրջանակում ինքնաշեն սարքի օգտագործմամբ լրիվ մեխանիկական էներգիայի պահպանման օրենքի ստուգման մի լաբորատոր փորձ: Տրվում է սարքի կառուցվածքն ու փորձի ընթացքը: Աշխատանքում քննարկված է նաև այդ օրենքի ստուգման համար ֆիզիկայի 10-րդ դասարանի դասագրքում [1] բերված N 7 լաբորատոր աշխատանքըֈ Համապատասխան փորձերի կատարման արդյունքում վերլուծվել են ստացված թվային արդյունքներըֈ: / The article presents a laboratory experiment to test the law of conservation of full mechanical energy using a homemade device in the framework of a school physics course. The structure of the device and the course of the experiment are given. The work also discusses laboratory work No. 7, proposed in the physics textbook [1] of the 10th grade, to test this law. As a result of the corresponding experiments, the obtained numerical results were analyzed.

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