Count Sides and Corners

Before handing out the worksheet, briefly introduce the concept with a short oral warm-up or a visual model on the board. Let students work through it with your modeling first (do the first item together on the board), then try the rest with a partner, encouraging them to talk through their thinking: "What strategy are you using? How do you know that is right?" After completing the worksheet, review any missed problems together and discuss the reasoning rather than just the answer. For extra support, let students use manipulatives or draw pictures alongside the written problems. These 2d shapes worksheets work well as daily practice, homework, or a focused review activity.

Count the sides and the corners of 6 flat shapes, from a triangle and a hexagon to a circle with none. The directions on the page read: Count the sides of each shape and write the number in the box with the orange line. Then, count the corners and write the number in the box with the blue dot. An answer key is included.

Yes, both. We made it for Kindergarten shapes, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with 2d shapes. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

Circle, square, triangle, rectangle and hexagon are the flat shapes named in CCSS K.G.A.2, and these pages add the oval, diamond and star. Children should name each one when it is big or small and when it is turned, which is why the triangle hunt shows triangles pointing every way.

Have your child trace one side at a time with a finger and count, then touch each corner. The sides and corners page marks sides with an orange line and corners with a blue dot, so no reading is needed, and a circle gets 0 for both.

Two triangles pushed together can make a square, and 2 halves of a circle make a circle. The make a shape page shows 2 pieces apart and asks children to circle the shape they make, which is CCSS K.G.B.6.

By age 4-5, children should recognize and name circles, squares, triangles, and rectangles. They should also begin to identify shapes in their environment and understand basic attributes (number of sides, round vs. straight). Worksheets with shape identification and tracing build this foundation.

Start with real objects: point out circles (plates, wheels), squares (windows, crackers), and triangles (pizza slices, hangers). Sort objects by shape. Then use worksheets for tracing and coloring shapes. Always describe the attributes (a triangle has 3 sides and 3 corners) to build mathematical vocabulary.

Kindergarteners name the cube, sphere, cone and cylinder and tell flat shapes from solid ones (CCSS K.G.A.2 and K.G.A.3). The 3D shapes pages color the cubes or spheres in a row, match solids to objects like an orange and a drum, and count the solids in a toy castle.

32 of the 63 sheets have an answer key, including every 3D shapes and shape patterns page. Most of the trace and color pages have none, since the answer is the traced shape itself.