| 1. |
- Arrhenius, Gustaf, et al.
(författare)
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Bevare oss för det brittiska utvärderingseländet
- 2012
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Ingår i: Universitetsläraren. - 0282-4973. ; 2012:18 dec
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- SVENSKA universitetsledningar tenderar numera att prioritera lärosätets intäkter högre än allt annat, inklusive klassiska akademiska ideal som bildning och fri forskning. Därför fruktar vi att ett genomförande av Jan Björklunds planer kommer att leda till samma slags vansinne i Sverige som vi nu ser i Storbritannien.
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| 2. |
- Lindberg, Lisbeth, 1946, et al.
(författare)
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Assessment in mathemathics teacher education
- 2011
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Ingår i: "Voices on learning and instruction in mathematics", editors: Jonas Emanuelsson, Laura Fainsilber, Johan Häggström, Angelika Kullberg, Berner Lindström, Madeleine Löwing. - Göteborg : University of Gothenburg. - 9789185143207 ; , s. 331-350
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Authentic tasks can promote higher-order learning. In the student task discussed in this paper the student teachers developed, tried, graded, discussed and revised mathematics test questions, in connection to an amusement park visit. The task was designed in an effort to bring the teacher educators in the mathematics and educational departments and those in the schools closer to each other through participation in a joint project, which was part of the "VFU" - the time that student teachers spend in school as part of the subject studies. The task involved different aspects of authenticity, both in the mathematics questions created in and in the creation of questions.Qualities in students' problems are discussed, and also student reflections on pupil and teacher reactions in relation to the authentic contexts. Traditional textbook problems were found to have a strong influence, as evidenced by many of the student-created problems and some of the supervisor reactions. Students' descriptions of teacher comments indicated that these focused more on classroom management than on mathematics content, consistent with traditional expectations on the VFU.
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| 3. |
- Malmqvist, Karin, et al.
(författare)
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From skating rink to physics assignment - Viewing a photo from a mechanics perspective
- 2022
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Ingår i: Physics Education. - : IOP Publishing. - 0031-9120 .- 1361-6552. ; 57:5
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Tidskriftsartikel (refereegranskat)abstract
- Circular motion changes the perception of up and down. For a skater, the need to lean in towards the centre of an arc constitutes an embodiment of centripetal acceleration. This paper presents a discussion between a physicist and a high-school science teacher without previous physics studies at university level. The discussions started as part of a course assignment and focused on a photo of skaters practicing a 'wing', which is a move in synchronised skating. The skating experiences are integrated with an understanding of the relations between radius, acceleration and the angles the total force from the ice deviates from the vertical.
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| 4. |
- Pendrill, Ann-Marie, 1952, et al.
(författare)
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Acceleration and rotation in a pendulum ride, measured using an iPhone 4
- 2011
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Ingår i: Physics Education. - 1361-6552. ; 46:6
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Tidskriftsartikel (refereegranskat)abstract
- Many modern cell phones have built-in sensors that may be used as a resource for physics education. Amusement rides offer examples of many different types of motion, where the acceleration leads to forces experienced throughout the body. A comoving 3D-accelerometer gives an electronic measurement of the varying forces acting on the rider, but a complete description of a motion also requires measurement of the rotation around the three axes, as provided, for example, by the iPhone 4. Here we present and interpret accelerometer and gyroscope data that were collected on a rotary pendulum ride.
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| 5. |
- Pendrill, Ann-Marie, 1952
(författare)
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Challenging our intuition in spectacular fashion - the fascinating world of quantum physics awaits
- 2012
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Ingår i: Physics Education. - 0031-9120 .- 1361-6552. ; 47:3
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Quantum physics is a world of its own, inhabited by strong per- sonalities and mythical creatures such as Schrödinger’s cat, but also by mind-boggling experi- ments and theoretical rules that challenge our intuition while giving spectacular agreement with experimental results. How can we invite students into this fascinating world. ...Read more about the event and register at http://egas44.org/
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| 6. |
- Pendrill, Ann-Marie, 1952, et al.
(författare)
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En Fysikbro för kontakter mellan forskare och skola
- 2011
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Ingår i: LMNT-nytt. - 1402-0041. ; 2011:2, s. 13-14
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Skolans undervisning i naturvetenskap kan lägga grunden för intresse och vidare studier inom de naturvetenskapliga och tekniksa ämnena, och strävar också efter att get en god allmänbildning som medborgarkunskap. I oktober 2011 anordnade NRCF ett nationell Fysikbromöte i Göteborg för att bygga broar mellan fysiker och gymnasielärare kring olika frågor.
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| 7. |
- Pendrill, Ann-Marie, 1952
(författare)
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Forces in circular motion: Discerning student strategies
- 2020
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Ingår i: Physics Education. - : IOP Publishing. - 0031-9120 .- 1361-6552. ; 55:4
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Tidskriftsartikel (refereegranskat)abstract
- Students often use incoherent strategies in their problem solving involving force and motion, as revealed, e.g. when they are asked to draw force diagrams for amusement rides involving circular motion, whether in horizontal or vertical planes. Depending on the questions asked, assignments involving circular motion can reveal different types of more or less correct and coherent strategies used by the students. This paper presents a number of different assignments involving circular motion. Alternative drawings, as found in student responses, are presented as a support for teachers to discern the strategies - an educational discernment. In addition, different strategies and examples used by textbooks concerning free-body diagrams and acceleration are discussed, as well as degrees of abstraction and realism. © 2020 IOP Publishing Ltd.
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| 8. |
- Pendrill, Ann-Marie, 1952, et al.
(författare)
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Free fall and harmonic oscillations: Analyzing trampoline jumps
- 2014
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Ingår i: Physics Education. - : Institute of Physics Publishing. - 0031-9120 .- 1361-6552. ; 50:1, s. 64-70
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Tidskriftsartikel (refereegranskat)abstract
- Trampolines can be found in many gardens and also in some playgrounds. They offer an easily accessible vertical motion that includes free fall. In this work, the motion on a trampoline is modelled by assuming a linear relation between force and deflection, giving harmonic oscillations for small amplitudes. An expression for the cycle-time is obtained in terms of maximum normalized force from the trampoline and the harmonic frequency. A simple expression is obtained for the ratio between air-time and harmonic period, and the maximum g-factor. The results are compared to experimental results, including accelerometer data showing 7g during bounces on a small trampoline in an amusement park play area. Similar results are obtained on a larger garden trampoline, and even larger accelerations have been measured for gymnastic trampolines.
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| 9. |
- Pendrill, Ann-Marie, 1952
(författare)
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Free fall and the equivalence principle revisited
- 2017
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Ingår i: Physics Education. - : IOP Publishing. - 0031-9120 .- 1361-6552. ; 52:6
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Tidskriftsartikel (refereegranskat)abstract
- Free fall is commonly discussed as an example of the equivalence principle, in the context of a homogeneous gravitational field, which is a reasonable approximation for small test masses falling moderate distances. Newton's law of gravity provides a generalisation to larger distances, and also brings in an inhomogeneity in the gravitational field. In addition, Newton's third law of action and reaction causes the Earth to accelerate towards the falling object, bringing in a mass dependence in the time required for an object to reach ground - in spite of the equivalence between inertial and gravitational mass. These aspects are rarely discussed in textbooks when the motion of everyday objects are discussed. Although these effects are extremely small, it may still be important for teachers to make assumptions and approximations explicit, to be aware of small corrections, and also to be prepared to estimate their size. Even if the corrections are not part of regular teaching, some students may reflect on them, and their questions deserve to be taken seriously. © 2017 IOP Publishing Ltd.
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| 10. |
- Pendrill, Ann-Marie, 1952
(författare)
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Kittinger and Baumgartner: on a mission to the edge of space
- 2012
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Ingår i: Physics Education. - 0031-9120 .- 1361-6552. ; 47:3
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- On 15 March 2012, Felix Baumgartner jumped from 71 500 feet [1], a test jump as part of his attempt to beat the earlier record set by Joe Kittinger, who jumped from 102 800 feet in 1960, as part of the US space programme [2] The ascent to these elevations in a helium balloon, followed by free fall, with varying temperatures and speed of sound, and increasing air resistance and density, can lead teachers and students to a discussion on many different aspects of physics.
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