Opening Mantra

1: saha nāv avatu 

2: saha nau bhunaktu
3: saha vīryaṃ karavāvahai tejasvi
4: nāv adhītam astu mā vidviṣāvahai
5: Oṃ śāntiḥ śāntiḥ śāntiḥ 

Meaning:
1: Om, Together may we two Move (in our Studies, the Teacher and the Student),
2: Together may we two Relish (our Studies, the Teacher and the Student),
3: Together may we perform (our Studies) with Vigour (with deep Concentration),
4: May what has been Studied by us be filled with the Brilliance (of Understanding, leading to Knowledge); May it Not give rise to Hostility (due to lack of Understanding),
5: Om Peace, Peace, Peace. :( To the Gross (physical) body, Subtle (astral) body, and Causal (karmic) body.)

Om sahana vavatu is an ancient mantra which comes from Krishna Yajur Veda Taittiriya Upanishad. It is a prayer usually recited before studying sacred scriptures and at the beginning of classes at school. It is considered a peace mantra. 

1. Pranamasana (prayer pose): Om Mitraya Namah - Om Hraam/  (Anahata)
2. Hasta Utthanasana (raised arms pose): Om Ravaye Namah - Om Hreem/ (Vishuddhi)
3. Padahastasana (hand to foot pose): Om Suryaya Namah - Om Hroom/  (Swadhisthana)
4. Ashwa Sanchalanasana (equestrian pose): Om Bhanave Namah - Om Hraim/  (Ajna)
5. Parvatasana (mountain pose): Om Khagaya Namah - Om Hraum/  (Vishuddhi)
6. Ashtanga Namaskara (salute with eight parts or points) Om Pushne Namah - Om Hrah/  (Manipura)
7. Bhujangasana (cobra pose): Om Hiranyagarbhaya Namah - Om Hraam/  (Swadhisthana)
8. Parvatasana (mountain pose): Om Marichaye Namah - Om Hreem/  (Vishuddhi)
9. Ashwa Sanchalanasana (equestrian pose): Om Adityaya Namah - Om Hroom/  (Ajna)
10. Padahastasana (hand to foot pose): Om Savitre Namah - Om Hraim/  (Swadhisthana)
11. Hasta Utthanasana (raised arms pose): Om Arkaya Namah - Om Hraum/  (Vishuddhi)
12. Pranamasana (prayer pose): Om Bhaskaraya Namah - Om Hrah/  ( Anahata )