| January | February | March | April | May |
| Date | Gnomon(cm) | Shadow(cm) | Angle(°) | Declination | Solar noon |
| 23 January | 30.4 | 47.5 | 57.4 | -19.35 | 12:37 |
| Activity | C2b students pretest and measurement (delay 10 mins) |
| 25 January | 30.4 | 46.7 | 56.9 | -18.86 | 12:38 |
| Activity | C4b students pretest, registered, login and short exploration of project's twinspace-measurement (delay 10 mins) |
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| Students working on pretest (google form) (created by Aigio teacher on questions created collaboratively by Aigion, Ilion and Lafrancaise teachers) | |
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| Date | Gnomon(cm) | Shadow(cm) | Angle(°) | Declination | Solar noon |
| 01 February | 30.4 | 43.5 | 55.1 | -17.07 | 12:39 |
| Activity | C4b : students presentation on padlet and etw desktop profiles |
| 20 February | 30.4 | 35 | 49 | -10.84 | 12:39 |
| Activity | C2b : students presentation on padlet and etw desktop profiles |
| 22 February | C4b: students working on earth's movements-guided web search and shared google slide in drive |
| 27 February | 30.4 | 31.8 | 46.3 | -8.25 | 12:39 |
| Activity | C2 students' measurement-Preparing artwork |
| Date | Gnomon(cm) | Shadow(cm) | Angle(°) | Declination | Solar noon |
| 01 March | 30.4 | -cloudy!!!- | :( | -7.54 | 12:37 |
| Activity | Too pity as today theoretical angle was around 45 (45.6)*** and we discussed the ways we could use this and the way Thales has used this to measure pyramids' height in Egypt. Finally, creation on school's google drive of a slide for March equinox *** for every 100cm of measured shadow the gnomon would be 100+2.1 cm |
| 08 March | 30.4 | 28.3 | 43 | -4.83 | 12:36 |
| Activity | C4b measurement and work in geogebra |
| 20 March | 39 | 30.5 | 38 | -0.15 | 12:33 |
| Activity | C1 special measurement for the equinox |
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| 01-03-2018 Collaborative work in a slide for vernal equinox (after Thales "misfortune") |
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| Date | Gnomon(cm) | Shadow(cm) | Angle(°) | Declination | Solar noon |
| 19 April | 60 | 28.6 | 25.5 | 11.27 (theoretical angle=26.8) | 13:24 |
| Activity | C4a students:training in google slide and drawing the geogebra figures (photos on April's slide) |
| 24 April | 30.4 | 14.1 | 24.9 | 13.01 | 13:23 |
| Activity | C2b students started working on shared google sheet on data collected by our school on 2018. Results from graphs pending |
| 26 April | 30.4 | 13.7 | 24.3 | 13.66 | 13:23 |
| Activity | C4a students: web search( on subject "What eratos has to do with van gogh?"), brainstorming on mentimeter for "bonds" among them and started working on na collaborative google slide for them (photos on Aprils slide). Next session will be on May 08 (c2b) and 10(c4b) |
| ***Photos for students working in Geogebra and in shared Google sheet to register data and for all April's activities are posted in the following April's gallery" |
| Date | Gnomon(cm) | Shadow(cm) | Angle(°) | Declination | Solar noon |
| 03 May | 30.4 | 12.3 | 22 | 15.72 | 13:22 |
| Activity | Spreadsheet on drive collecting data from last year's messurements |
| 09 May | 30.4 | 11.5 | 20.7 | 17.4 | 13:21 |
| Activity | C4 class in rush(not a seesion today-measurement because Hyderabed had no noon shadow day) |
| 17 May | 30.4 | 10.3 | 18.7 | 19.45 | 13:21 |
| Activity | C4 class working on google drive -presentations |
| From May's activities: Working on shared google sheet |
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| From 26 April's activities: Eratosthenes and Van Gogh |
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Δείτε το βίντεο για τον Van Gogh και το βίντεο για τη μέτρηση της Περιφέρειας της Γης από τον Ερατοσθένη που δημιούργησαν οι μαθητές της Πετρούπολης και συζητείστε τα συμπεράσματά σας από τα δύο παραπάνω βίντεο στο mentimeter(slide2) που ακολουθεί (Watch the 2 videos that follow below ; one is about Eratostjenes method created by Petroupoli's stydents and the 2nd video is about Van Gogh. Then try to answer the questions of Mentimeter). Group discussion in class will follow.)
Hint: Try to spot these words on the video and maybe you could use them on mentimeter
mind - eyes - recognise patterns and descride them - hardest concepts in nature - art/geometry to depict the way it looks - movement - fluid - light - age of suffering
Video A (created by Petroupoli's students):
Video B about Van Gogh:
Results in Mentimeter
Mentimeter slide 2
Mentimeter slide 1
Students evaluation of the project: "A word that comes to your mind connecting to this project"
EXTRAS
Last year in Eratosthenes 2017 (in December 2017) Bill had created a project in scratch calculating the Distanceampng two places when their latitudes were given (we had the pleasure that project to have been remixed by our partners in Colombia and translated in Spanish)
This year in April, a project was created in scratch by Aggelos (11th Junior High School of Ilion) which calculates the Circumference of the earth as a result of the data provided of the measurements of two partners. Aggelos team had worked the part that the two partners schools are on the same hemisphere; in checking the other cases he had help from the teacher.
Bill's scratch project for eratosthenes 2017(link):
Angelos scratch project for Eratosthenes 2018(link):
Some presentations here and all of them google drive -school's account(link):
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