3rd Grade Math Geometry Worksheets & Printables - TeacherVision Feb 07, 2022 · VIEW THIRD GRADE MATH TOPICS 3-Dimensional Shapes Students draw a circle around the vertex of each 3-dimensional shape. Congruency Figures that are the same shape and size are congruent; children must find the congruent shapes in this geometry worksheet. Point out that shapes do not have to be oriented in the same way in order to be congruent.