1. draw a bar magnet as a magnetic dipole consisting of two magnetic monopoles of. label each monopole with its strength and sign. label the distance. choose a convenient coordinate system.
2. select a point on your drawing along one of the symmetry axes at which you will calculate the magnetic field. the point should be outside the magnet.
3. assume that the magnetic field caused by a magnetic monopole has the same behavior as a function of distance as the electric field caused by a charge. write down this function
4. add the magnetic field from each pole at that point you selected to get the
5. graph your resulting equation for magnetic field strength along that axis as
6. repeat the above steps for the other axis magnetic field at that point. a function of position along the axis.