| CPC G01C 21/30 (2013.01) [G01C 21/3667 (2013.01); G01C 21/3807 (2020.08); G01S 19/24 (2013.01); G06T 11/60 (2013.01); G09B 29/003 (2013.01)] | 20 Claims | 

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               1. A system for improving accuracy in land navigation with limited non-electronic manual tools, comprising: 
            a computer; 
                an application that when executed on the computer: 
              provides a starting point and a first plurality of destination points in a field environment with instructions to physically locate the first plurality in a first order, 
                  receives a second plurality of points indicating locations identified as corresponding to the first plurality, the second plurality physically found in the field environment in the first order, 
                  plots on an electronic map the starting point, the first plurality, and the second plurality, 
                  performs analysis, based on observation of the plotted starting point and pluralities, of variances from each of the first plurality of points to a corresponding each of the second plurality of points, and 
                  displays analysis output and the map in a manner promoting group instruction about the variances. 
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