A group of first grade students from Deer Creek School were gathered in the school lunchroom at long tables around platters of kiwi. “These are good,” said Cayden Howard, age 6, as he dug a plastic spoon into the soft green innards of the fruit. Like many of his classmates, this was Cayden’s first taste of kiwi. While some went for seconds and thirds, others puckered their mouths as if they had just sucked a lemon. Live Healthy Nevada County began tastings at local schools like these in January with mandarins and plan to do the same with a different …