You will need a photovoltaic system and monitor at your school in order to obtain all of the data required to thoroughly implement this instructional activity. Your class monitors daily temperature and insolation amounts over a two week span of time. They also refer to a hardiness zone map and a tomato yield table for different varieties of tomatoes. From the combination of information, they determine whether or not it is a suitable time to grow tomatoes. You are so fortunate if your school uses solar panels because this is a terrific instructional activity in variables that influence tomato growth!