Walentynki na matematyceSerce origami:https://www.youtube.com/watch?v=3DOaN-EcNNU&fbclid=IwAR3F_AuP7PRAQvsV7j4kCS1KbL8AAq5qC6oL_H5-dR41hdLwFJC0-Ecq4UU
Serce origami:https://www.youtube.com/watch?v=3DOaN-EcNNU&fbclid=IwAR3F_AuP7PRAQvsV7j4kCS1KbL8AAq5qC6oL_H5-dR41hdLwFJC0-Ecq4UU