See also. 1  Orthos (disambiguation) 2  Ortho Mode Transducer. 3  Orthochromatic. 4  Orthophotography. 5  Orthogonality. 6  Orthonormality. 7  Orthographic projection. 8  Orthoptera.
Doing a Fair Test. It is important for an experiment to be a fair test. You conduct a fair test by making sure that you change one factor at a time while keeping all other conditions the same. For example, let's imagine that we want to measure which is the fastest toy car to coast down a sloping ramp.ou conduct a fair test by making sure that you change one factor at a time while keeping all other conditions the same. For example, let's imagine that we want to measure which is the fastest toy car to coast down a sloping ramp.
If schools are to test -- and reasoning for that alone is debatable -- then districts cannot expect fair evaluation when circumstances are different for each child. For many children, the burden of life alone is often so great that their primary goal is not a quality education, but day-to-day survival.