The ornamental design for a rainbowwheelteachingaid, as shown and described.
The file of this patent contains at least one drawing/photograph executed in color. Copies of this patent with color drawing(s)/photograph(s) will be provided by the Office upon request and payment of the necessary fee.
The FIGURE is a front view of the flat rainbow wheel teaching aid, showing my new design for a rainbow wheel teaching aid. The sides, top, bottom and rear views are also flat and are devoid of surface ornamentation, having a thickness and dimensions of a piece of paper.