On gauge renormalization in classical electrodynamics by Alexander L. Kholmetskii

By Alexander L. Kholmetskii

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These similarities are certainly enough to support the claim that learning science and doing science are basically the same activities. The relationship between science and technology The concern with understanding, which is charactenstic of science, enables it to be clearly distinguished from technology. Technological activity is closely connected in pradice with scientific activity. Both are relevant in the education of young children but one should not be mistaken for the other. Technology is about solving problems by designing and making some artefact, whereas science is about understanding.

They find the blocks differ in their ability to do this. Neither the test nor the conclusion from it are very soundly based but there is no challenge, from the teacher or the group, to make them reconsider it. Thus the idea that the blocks were 'magnetic' remained with them and was later reported as a finding from their group work, although not recorded here. The magnetism sequence is briefly interrupted when Lisa reminds the others that they are to look for other things that were different about the blocks.

That one (putting block A into the water) Does it float? (a11 bend down to have a good look at the floating blocks) Yes, half and half Half and half (Beginning to write this down) Right! (Felicia, Manjinder and Anya each pick up one of the remaining blocks) Shall I put B in? anwhile a second group, of four boys (Ahmed, Richard, Pete and k m i ) and one girl (Rachel), have started in a similar way, putting soe block in at a time, and so far A, B and C are floating in the water. 28 Teaching, learning and assessing science 5-12 Five heads are crowded round the bowl and before D is put in one of the boys says: C's nearly all gone, so D must sink D must sink (block D is then put in and floats very high in the water) Ah, D's fioating on the top Pete D's the best floater Femi Now why is D the best floater?

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