The ornamental design for an educationaldoll with flexiblebody, as shown and described.
FIG. 1 is a perspective view of an educational doll with flexible body of the present invention;
FIG. 2 is a front view thereof;
FIG. 3 is rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The portions of the figures shown in broken lines illustrate unclaimed portions of the present invention and form no part of the claimed subject matter.