Discipline‐centered post‐secondary science education research: Understanding university level science learning

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99001/1/tea21099.pd

Õpilaste kaasamine STEM-haridusse

In this manuscript we focus on how to develop STEM learning environments, and how STEM can be implemented in K-12 schools. We focus on the following question: “How can we support students in building a deep, integrated knowledge of STEM so that they have the practical knowledge and problem solving skills necessary to live in and improve the world?” We also discuss criteria for evaluating STEM learning environments and the challenges teachers face in implementing STEM. We define STEM as the integration of science, engineering, technology, and mathematics to focus on solving pressing individual and societal problems. Engaging students in STEM also means engaging learners in the design process. Design is integral to student thinking in the STEM world. The design process is very non-linear and iterative in its nature but requires clearly articulating and identifying the design problem, researching what is known about the problem, generating potential solutions, developing prototype designs (artifacts) that demonstrate solutions, and sharing and receiving feedback. With the integration of design, STEM education has the potential to support students in learning big ideas in science and engineering, as well as important scientific and engineering practices, and support students in developing important motivational outcomes such as ownership, agency and efficacy. Moreover, students who engage in STEM learning environments will also develop 21st century capabilities such as problem solving, communication, and collaboration skills

Remarks on Duffin-Kemmer-Petiau theory and gauge invariance

Two problems relative to the electromagnetic coupling of Duffin-Kemmer-Petiau (DKP) theory are discussed: the presence of an anomalous term in the Hamiltonian form of the theory and the apparent difference between the Interaction terms in DKP and Klein-Gordon (KG) Lagrangians. For this, we first discuss the behavior of DKP field and its physical components under gauge transformations. From this analysis, we can show that these problems simply do not exist if one correctly analyses the physical components of DKP field.Comment: 19 pages, no figure

Absence of Klein's paradox for massive bosons coupled by nonminimal vector interactions

A few properties of the nonminimal vector interactions in the Duffin-Kemmer-Petiau theory are revised. In particular, it is shown that the space component of the nonminimal vector interaction plays a peremptory role for confining bosons whereas its time component contributes to the leakage. Scattering in a square step potential with proper boundary conditions is used to show that Klein's paradox does not manifest in the case of a nonminimal vector coupling

Discipline‐centered post‐secondary science education research: Distinctive targets, challenges and opportunities

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/108082/1/tea21165.pd

Õpilaste kaasamine STEM-haridusse

Artiklis käsitletakse STEM-õpikeskkonna arendamise võimalusi ning STEMi rakendamist põhi- ja keskkooliastmes, keskendudes järgmisele küsimusele: kuidas aidata õpilastel omandada põhjalikke ja integreeritud STEM-valdkonna teadmisi, et neil oleks praktilised teadmised ja probleemilahendusoskused, mis aitaks neil maailmas hakkama saada ja seda paremaks muuta? Lisaks tutvustatakse STEMõppeks sobiva keskkonna hindamise kriteeriume ning käsitletakse probleeme, millega õpetajatel tuleb STEM-ainete õpetamisel kokku puutuda. Meie määratluse järgi on STEM loodusteaduste, tehnoloogia, inseneriteaduse ja matemaatika ühendamine eesmärgiga lahendada pakilisi isiklikke ja ühiskondlikke probleeme. Õpilaste kaasamine STEM-valdkonda tähendab nende kaasamist disainiprotsessi. STEM-maailmas on disain õpilaste mõttemaailma lahutamatu osa. Disainiprotsess on mittelineaarne ja oma olemuselt korduv, kuid nõuab disainiprobleemi kindlaksmääramist ja selget sõnastamist, probleemi kohta juba teada oleva teabe uurimist, võimalike lahenduste pakkumist, prototüüpide (tehisesemete) väljatöötamist, et lahendusi demonstreerida, ning tagasiside jagamist ja saamist. Disainile keskenduva STEM-hariduse kaudu on võimalik toetada õpilasi suurte loodus- ja inseneriteaduslike ideede ning oluliste praktiliste loodus- ja inseneriteaduslike teadmiste omandamisel. Samuti võimaldab STEM-haridus motiveerida õpilasi, et neil tekiks omanikutunne ning vajadus oma ideid tutvustada ja tulemuslikult tegutseda. Enamgi veel, STEM-õpikeskkonda kaasatud õpilased saavad arendada selliseid 21. sajandil vajalikke oskusi nagu probleemilahendus- ja suhtlemisoskus ning koostöövõime.  Full tex