Observation Provides Data on Problems, but Cannot Solve Them

A good illustration of the scientific method, in which observations are made for the purpose of identifying difficulties and analyzing situations, is the procedure followed by a physician when he makes a diagnosis. A doctor does not write a prescription solely on the basis of what his patient tells him; he uses instruments to take the patient’s temperature to examine his feces, and to analyze his urine. It is only after he has made these examinations that he writes his prescription; without...

 Quantifying Animal Farmed Animal Suffering with Neuron Co...

The question of what weight to give to human interests and to nonhuman animal interests is difficult.67 Humans are literally outweighed by farmed animals: land-based farmed animals have 70 percent more biomass than all humans.68 Land-based farmed animals also outnumber humans greatly, by a factor of three to one, with 25 billion chickens, 1.5 billion cattle, 1 billion sheep, and 1 billion pigs alive at any one time; farmed fish outnumber us, at a very rough estimate, ten to one, with around 1...

 Math Exercise: Comparisons

Select two boxes or cans of food that weigh 8 ounces and 16 ounces, respectively. Have students hold each as you tell them (or they read) the weights of the containers. Give students a box or can with the weight covered and have them compare the weight of the new package to the weight of the 8- and 16-ounce samples. Th ey can then estimate whether the new item’s weight is closer to 8 or 16 ounces. As students become more successful, they may want to predict a more specifi c weight. Ask them...