while your at school there are 2 things u could do....
1st-find out what time ur tama character goes to sleep (they go to sleep the SAME TIME each day)you can find out by finding charts ppl make. if u cant find 1 ill tell u but what tama do u have?K. u gotta set the clock to the time it goes to sleep,that way it will sleep while u r at school (they sleep for like 12 hours) this way is better than the 2nd caz it will GROW in its sleep.
2nd- pause it. thats all. But YOUR TAMA CANNOT GROW. my sister puts hers on pause all the tome. shes had a generation for 2 monthes and its only 2 years old.