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| Issued Date | Title | Author(s) | Level |
|---|---|---|---|
| 30-Jun-2019 | Mental representations of 14-15 years old students about the light | Ravanis, Konstantinos; Kaliampos, George | - |
| 30-Jun-2019 | Familiarizing pupils 4-6 years old with forms of spatial representation. The use of photography as an auxiliary tool | Zacharos, Konstantinos; Kilia, Maria; Ravanis, Konstantinos | - |
| 13-Oct-2019 | Mental representations of light propagation time for 10- and 14-year-old students : didactical perspectives | Ravanis, Konstantinos | - |