DrillPre-K to K
Shape recognition worksheets
Circle or color the circles, squares, triangles and rectangles hidden in each row.
Classify triangles and quadrilaterals
Name triangles by their sides or angles, and quadrilaterals by their marks: square, rectangle, rhombus, parallelogram, trapezoid or kite.
About this worksheet
Triangles are drawn to scale from the side lengths or angles written beside them, so students compare numbers and sort them: equilateral, isosceles or scalene by sides; acute, right or obtuse by angles. Quadrilaterals carry tick marks for equal sides, arrows for parallel sides and small squares for right angles, and students circle the most exact name.
A trapezoid is taken to have exactly one pair of parallel sides, and the page says so. Every name is worked out from the shape itself, and the answer key circles it.
Printing
US Letter or A4, portrait: choose your paper size above. Print at 100 percent (actual size). Use "Black and white" for the copier, or "Color" for display pages and mini books.
Popular versions
Ready-made settings for common topics.
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