Results for the angular dependence of the backscattering coefficient for 3.0 and 5.0 keV electrons incident on a tungsten target are presented. The values of measured at extreme angles of incidence , namely, at and , are found to be 0.389 and 0.468 for 3.0 keV and 0.429 and 0.524 for 5.0 keV respectively. Experimental data are compared with the available theoretical and experimental results. The agreement between experiment and theory is found to be satisfactory for the low angles of incidence but deviations are observed for higher values. Possible reasons for these discrepancies are pointed out and discussed.