Helldén, 1994 - Google Patents
Grundskoleelevers forstaelse av ekologiska processer.Helldén, 1994
- Document ID
- 9323683973132530295
- Author
- Helldén G
- Publication year
External Links
Snippet
Degree: Fil. Dr. DegreeYear: 1992 Institute: Lunds Universitet (Sweden) Publisher: Almqvist & Wiksell International, Box 638, S-101 28 Stockholm, Sweden. The purposes of this study are:(1) to describe the thinking of pupils (within a class of 25-29) about ecological …
- 210000001747 Pupil 0 abstract description 13
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation of plants in receptacles, forcing-frames, or greenhouses
- A01G9/18—Greenhouses for treating plants with carbon dioxide or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Hydroponics; Cultivation without soil
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