Homi Bhabha Centre for Science Education, TIFR
Padalkar, S. & Ramadas, J. (2010). Designed and spontaneous gestures in elementary astronomy education. International
Journal of Science Education. DOI: 10.1080/09500693.2010.520348
Pedagogic Gestures
Moon moves around the earth while the earth forwards (considering the earth's orbit to be almost straight and the sun to be very far away)