this article emphisezes the design based curriculum on students' content understanding of simple machines. engineering design method is used to teach the topic "simple machines" to fifth graders in USA. the engineering design is defined as an activity that involves the construction of a physical product which solves a human problem.during the study, students designed some simle machines such as seesaws, food mixers,ramps and pulley and used lego materials. while students designing and building models of real simple machines, they figured out how each simpel machine works and how simple machines are different from complex machines. in the study, researchers applied pre and post test to fifth grade students to test their understanding. it is seen that most of the students have misconseptions about simple machines and complex machines. students think that simple machines decrease the work done and sipmle machines do some of the work for us so we use less energy and complex machines are the ones that work with electricity or battery power. for students to have a conceptual understanding of simple machines, they need to know some related concepts such as work,energy, force. it is suggested in the article that teachers should give extra attention to these topics.
s1: how do you consider the readiness of fifth grade studetns for this study? why did you choose 5. grades in stead of 6,7 or 8?
s2: why there is no control group in the study?
In this Chapter, LEGO materials for grades fifth unit on simple machines are designed modules . In applying this module later in the course , students' attitudes towards science and achievement in terms of efficacy were investigated. The simple machines LEGO engineering -based module , which was developed for fifth graders by their research team, was not implemented in an urban school in a large city in the Northeastern region of the USA . Thirty -three fifth grade students participated in the study, and they Showed Significant growth in understanding the content . They measured students ' content knowledge by using identical paper tests and semistructured interviews before and after instruction . Paired t test analysis results Showed that their students significantly improved their test scores and interview . Identified several alternative conceptions that they are also held by students on simple machines . this research, especially in engineering -based approach that can be applied at the level of primary education is important in terms of showing . In this paper, we report on the Successes and Challenges of Implementing an engineering design- based and LEGO ™ -oriented unit in an urban classroom setting and they focus of the impact of the unit on students ' content understanding of simple machines . In this curriculum unit, they do not aim to teach engineering as a stand-alone subject ; instead , they use design engineering as a context to teach a science subject , simple machines .
YanıtlaSilS-1- when conducting a study , to work with people in different fields of study for researchers as to what are the advantages or disadvantages ?
S-2- conducting such a study in public schools may entail some problems financially . How to cost issues be resolved?
In this article, learn about simple machines subject to a survey conducted with the use of LEGO has been described. This research in the USA in a city school 5 classes were made. According to the findings of research students have misconception about this topic in. This misconceptions can be summarized as follows:
YanıtlaSil1 Simple machines decrease the amount of the work you need to do.
2 Simple machines do some of the work for you, so you use less energy.
3 Complex machines are machines that work with electricity or battery power.
Students, simple and machinery, because they think the words separately, misconception has occurred. Research triarchic intelligence and design-based instruction that facilitates learning has shown that the combined use. Triple intelligence theory focuses on analytical, practical and creative concepts.Each question is used to evaluate a different skill set. Is generated according to the evaluation unit gains be asked. Content, guide books and worksheets arranged. Unit lasted four weeks. Pre-and post-test was applied. Semi-structured interviews were conducted at the same time. Ultimately formed a significant factor. Students greatly reduced misconception. Students with this method of analysis, discussion, practicality and creativity improves the ability.
1 In our country, simple machines, 7 grade subject, what is the reason for this?
2 Be composed of two persons of the group work necessary? What is the number of students in the group is preferred?