A unified approach to e nu - N deep inelastic scattering cross sections at all Q**2

We present the results of a new scaling variable, ξw in modelling neutrinoand electronnucleon scattering cross sections using effective leading order PDFs. Our model desribes all deep inelastic scattering charged lepton-nucleon scattering data including resonance data (HERA/NMC/BCDMS/SLAC/JLab) from very high Q to very low Q (down to photo-productin region), as well as CCFR neutrino data. Non-perturbative QCD effects at low Q region turn out to be well described by this new scaling variable. Our model is currently used for neutrino oscillation experiments at few GeV region.