1. tell students find a spot in the classroom they can stretch two arms and wont touch others.
2. play the link
https://drive.google.com/file/d/1_clnU-1hvrBdVC-myp240GSlMkhMh4hW/view?usp=sharing
https://drive.google.com/file/d/10qm7b2Wjo0PpfYfqV_k8hmf28FjOnm_l/view?usp=sharing
https://drive.google.com/file/d/12fCx8mTUmbPE5bJQhIuvju1BCRhkjSqr/view?usp=sharing
https://drive.google.com/file/d/11hE6HG5cXxWLAck8rOK5zJkccbNazqUJ/view?usp=sharing
