123456789123456789123456789123456789123 123456789123456789123456789123456789123 123456789123456789123456789123456789123 CCSS Geometry (G) 123456789123456789123456789123456789123 Unpacking the Standards 123456789123456789123456789123456789123 Grade K 123456789123456789123456789123456789123 123456789123456789123456789123456789123 123456789123456789123456789123456789123 123456789123456789123456789123456789123 123456789123456789123456789123456789123 123456789123456789123456789123456789123 123456789123456789123456789123456789123 Standard: K.G.1 Cluster (s/a) Math Practices: 6, 7 Related CA Standard M&G 2.0 ______________________________________________________________________________________ Describe objects in the environment using names of shapes, and describe the relative positions of these objects__ using terms such as above, below, beside, in front of, behind, and next to._______________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Essential Skills/Concepts Use position words to describe objects in the environment. Use the name of the shape. Describe the position of these objects using academic vocabulary. In and out Inside and outside Down and up Above and below Over and under Before and after Top and bottom Front and back Right and left On and off Begin and end Near and far Academic Vocabulary: above, below, beside, in front of, behind, next to Square, circles, triangle, rectangles, hexagon, cubes, cones cylinder sphere Teaching Notes/Strategies Guide students with questions: Which way? How far? Where? What type of object? Teacher holds up objects and asks students to identify each shape. Ask students to find specific shapes within the classroom and describe their position. Teacher positions an object and asks the question – Where is the object? I Spy Game Shapes on a geoboard Connect to Language Standard K.L1.e (prepositions) Resources http://www.k5mathteachingresources.com/ -Pattern Block Barrier Game -3D Shape Sort Cards -Play dough Shape Mats Standard: K.G.2 Cluster (s/a) Math Practices: Related CA Standard 6, 7 M&G 2.1 ______________________________________________________________________________________ _Correctly name shapes regardless of their orientations or overall size.________________________________ ______________________________________________________________________________________ Essential Skills/Concepts Identify two-dimensional shapes, even when the shapes are different orientations. Name shapes that occur in everyday language (circle, triangle, square). Distinguish Examples from Nonexamples Variants--other examples of the shape category Palpable Distractors--nonexamples with little or no overall resemblance to the exemplars Difficult distractors--visually similar to examples but lack at least one defining attribute Academic Vocabulary: Teaching Notes/Strategies Resources Teacher facilitates discussions about shapes (“Is it still a triangle if I turn it like this?”), children question what they “see” and begin to focus on the geometric attributes. Variety of shapes in different sizes Identify different size shapes in classroom. “Eye Spy” http://www.k5mathteachingresources.com/supportfiles/shapesort.pdf (shape sort) Common Misconceptions: • Most kindergarten students are not able to recognize an “upside down” triangle as a triangle, because of its orientation. Students should be exposed to many types of triangles, in many different orientations, to eliminate the misconception that a triangle is always vertex-up and equilateral. • Many times a square with a vertex pointing downward is labeled as a “diamond.” This needless introduction of a new shape name should be avoided, as it only serves to confuse the fact that such a shape is still a square, though its orientation is atypical. Flash Cards The Shape Of Things by Dayle Ann Dodds Standard: K.G.3 Cluster (s/a) Math Practices: 6, 7 Related CA Standard ______________________________________________________________________________________ Identify shapes as two-dimensional (lying in a plane, “flat”) or three-dimensional__________________________ (“solid”)._______________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Essential Skills/Concepts Teaching Notes/Strategies Identify shapes as two dimensional (flat). Model shapes by building and drawing. Identify shapes as three dimensional (solid). Embed vocabulary in sentence frames during exploration. Differentiate between two dimensional and three-dimensional shapes. Misconception: Students may perceive solid shape as flat if only seen in picture. Expose students to real world examples. Students name a picture of a shape as two dimensional because it is flat and can be measured in only two ways length and width. Students name an object as three dimensional because it is not flat (it is a solid object/shape) can be measure by length, width, height/depth. Academic Vocabulary: Flat, Solid Optional: two-three dimensional Eye Spy Game Resources http://www.k5mathteachingresources.com/supportfiles/geometry-sentence-framesset3-kg3.pdf (geometry sentence frames) Geometry Solids Solid Shape Die cuts Standard: K.G.4 Cluster (s/a) Math Practices: 4, 6, 7 Related CA Standard M&G 2.2 ______________________________________________________________________________________ Analyze and compare two-and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/”corners”) and other_______ attributes (e.g., having sides of equal length).____________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Essential Skills/Concepts Describe similarities and differences among shapes using informal language. Academic Vocabulary: Corners, edges, sides, points Teaching Notes/Strategies Resources Example: Sorting Shapes. Students sort a pile of squares and rectangles into two groups. They discuss how the rectangles and squares are alike and how they are different. After students demonstrate an understanding of the differences between squares and rectangles, the teacher hands out either a square or a rectangle cut-out to each student. The teacher directs students with the square cut outs to one side of the room and the students with the rectangle cut outs to the opposite side of the room. The rectangle and square cut outs differ in size and color so that students focus on the shape attributes. Students learn informal language such as “a square is a special rectangle that has 4 sides of equal length” to avoid the misconception that a square is not a rectangle. http://www.k5mathteachingresources.com/supportfiles/shapes-shapes-shapes.pdf Shapes, Shapes, Shapes! Book Template Four Corners activity Living Charts Categorize and Classify Double Bubble Map Pattern Blocks Standard: K.G.5 Cluster (s/a) Math Practices: 1, 4, 5, 7 Related CA Standard ______________________________________________________________________________________ Model shapes in the world by building shapes from components (e.g., sticks and clay balls) and drawing__________ shapes.________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Essential Skills/Concepts Students apply their understanding of geometric attributes of shapes in order to create a given shape. Model shapes in the world by building shapes from physical components (clay, toothpicks, marshmallows, gumdrops, straws) Draw shapes Academic Vocabulary: Corner, edges, sides, points Teaching Notes/Strategies Modeling Centers / Workshops Teacher describes each attribute as they create explaining what each attribute within the object represents. For example a gumdrop is a corner. Resources When a Line Bends…A Shape Begins by Rhonda Gowler Greene http://www.k5mathteachingresources.com/supportfiles/whenalinebendsashapebegins1.g2.pdf (activity card) clay, toothpicks, marshmallows, gumdrops, straws, paper, pencil Standard: K.G.6 Cluster (s/a) Math Practices: Related CA Standard ______________________________________________________________________________________ Compose simple shapes to form larger shapes. For example, “Can you joint these two triangles with full sides_____ touching to make a rectangle?”_______________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Essential Skills/Concepts Manipulate two or more shapes to create a new shape. Teaching Notes/Strategies Exploring shapes with tangrams Students rotate, flip, and arrange puzzle pieces, and they move shapes to make a design or picture. What pattern did you create? Shape Names www.nctm.org/standards/ content.aspx?id=25012 (interactive tangram puzzles) http://www.k5mathteachingresources.com /kindergarten-geometry.html (build a hexagon, build a block, pattern block pictures) “Can you join these two triangles with full sides touching to make a rectangle?” Academic Vocabulary: Resources Which shapes did you use? Trace new shapes created. Mouse Shapes by Ellen Stoll Walsh Tangrams