Jefferson Lab has become one of the premier facilities for the study of nucleon spin structure. In the past decade, several high precision measurements have been performed that have extended our knowledge of the spin-dependent structure functions g₁(x,Q²) and g₂(x,Q²) between Q² = 0.1 - 5 GeV². From the measured nucleon structure functions, spin moments and polarizabilities have been formed. In the low Q² region, these moments have been calculated using Chiral Perturbation Theory (χPT), a low-energy effective field theory. Experiments at Jefferson Lab in Halls A and B have recently measured the nucleon structure functions in this region (0.02 - 0.5 GeV²). These measurements allow us to make a benchmark-check of χPT calculations, where the calculations are expected to be valid. Previous results down to 0.1 GeV² have shown surprising disagreement with these calculations. An overview of the measurements in Halls A and B will be presented including preliminary results on the neutron moments down to 0.04 GeV².