gah my fixed method

Method:
The stiff piece of cardboard was measured, 61 cm on the longest side and
30.5 cm on the shortest side, the excess cardboard was cut away. A pushpin was
stuck 2cm along the centre of the longest side. A 30.5cm piece of string was cut and
one end was tied around a pencil and the other end, the pushpin. A hemisphere of
approximately 4cm was cut out of the area in the centre of the longest side, just big
enough to fit a volunteer’s nose. The pencil with the 30.5cm string attached to it was
stretched and used to draw a hemisphere of diameter 61cm. A protractor was placed in front of the push pin and intervals of 10 degrees were marked and the lines were then extended with the use of a ruler, to the edge of the hemisphere. Colours that were more visible on black cardboard were used to darken the lines to make it more visible. A foam cup was stuck midway beneath the cardboard to make it a handle. Several colours and shapes were then cut out and coloured in with different
coloured markers and sticky taped onto a popsicle stick. A volunteer was gotten to
hold the vision protractor and another person held a popsicle stick with a shape on
perpendicular to the protractor and run along the curve, until the volunteer detected the object, then the shape and finally the colour. The angles at first sight
was then recorded in a table which had the records for each colour/shape and the
angles.