Five pages on naming shapes by their sides and angles. Page 1 starts with a worked triangle, its three angles marked: students count the sides and the angles of a quadrilateral, a pentagon, a hexagon and more, then write each name from the word bank. On page 2 twelve lettered shapes are sorted into triangles, quadrilaterals, pentagons and hexagons; some are turned, long and thin, or have a corner that points in, like an L shape (a hexagon) and a dart (a quadrilateral). Page 3 shows rows of four shapes: students circle the one that does not belong and write how many sides it has and how many the others have. Page 4 gives clues such as 4 sides with no square corners, or 5 angles with 2 square corners; students draw each shape on dot paper and name it. Page 5 is shape riddles (I have 1 more angle than a quadrilateral) and counting all the sides or angles in a group of shapes.
Before page 1, show a shape on the board and trace each side with a finger, then tap each angle as the class counts aloud. Point out that the number of sides and the number of angles is always the same. For page 2, cut an L shape out of paper and count its sides together: many students expect 4. Geoboards or dot paper make page 4 hands-on; ask two students to compare their pentagons, which can look very different and still both be right.
Go on a shape hunt and count sides: a stop sign, a slice of pizza, a window, a kite. Draw a shape with 5 sides together, then try to draw a different one with 5 sides. Make up riddles for each other: I have 4 sides and 4 square corners.
This pack supports the following Common Core State Standards for Mathematics:
© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.
A 5-page 2nd grade pack on triangles, quadrilaterals, pentagons and hexagons. Count the sides and angles of six shapes and name each one from a word bank, then sort twelve shapes by their number of sides, including shapes that are turned, long and thin, or have a corner that points in (an L shape is a hexagon). Find the shape that does not belong in each row, draw shapes on dot paper from clues about sides, angles, square corners and equal sides, solve shape riddles, and count the sides and angles in a group of shapes. Every page comes in color and in black and white. Answer keys included.
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