Practice Distinguishing Observations and Inferences - In Class Exercise

On page 28 there are two sets of three pictures displaying different parts of a tree. Assuming that the top row of pictures was taken independently, and that the bottom row of pictures tried to replicate the original set, we can infer different facts. The first inference is that the person who took the original set of pictures wrote as well a description of how they were obtained, and the second person followed this set of instructions to produce his photographs. We can infer this because both sets of pictures look very similar, and if someone had the task to photograph a tree they could have gone to any tree, but in this case all the pictures show the same tree and the same areas of it. We can infer as well that the two sets of pictures were taken with different cameras or filters, since the bottom row has different lightning than the top row, which could be due to a failure to explicitly explain to use the normal set up of the camera or a specific model of photographic device. Finally, we can infer that the sets of pictures were probably taken at different times of the day, although with no major differences in timing, because the position of the light falling over the sap in the middle picture changes slighlty between rows.