TEKS Objectives
(6) Geometry and measurement. The student applies mathematical process standards to analyze attributes of two-dimensional shapes and three-dimensional solids to develop generalizations about their properties. The student is expected to:
(A) classify and sort regular and irregular two-dimensional shapes based on attributes using informal geometric language;
(B) distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape;
(C) identify two-dimensional shapes, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons and describe their attributes using formal geometric language;
(D) identify three-dimensional solids, including spheres, cones, cylinders, rectangular prisms (including cubes), and triangular prisms, and describe their attributes using formal geometric language;
(E) compose two-dimensional shapes by joining two, three, or four figures to produce a target shape in more than one way if possible;
(F) partition two-dimensional figures into two and four fair shares or equal parts and describe the parts using words; and
(G) identify examples and non-examples of halves and fourths.
(A) classify and sort regular and irregular two-dimensional shapes based on attributes using informal geometric language;
(B) distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape;
(C) identify two-dimensional shapes, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons and describe their attributes using formal geometric language;
(D) identify three-dimensional solids, including spheres, cones, cylinders, rectangular prisms (including cubes), and triangular prisms, and describe their attributes using formal geometric language;
(E) compose two-dimensional shapes by joining two, three, or four figures to produce a target shape in more than one way if possible;
(F) partition two-dimensional figures into two and four fair shares or equal parts and describe the parts using words; and
(G) identify examples and non-examples of halves and fourths.
Resources
1. http://math.about.com/od/geometr1/ss/gr1geometryws.htm. This link has plenty of worksheets for assessment of geometric shapes. These worksheets mainly focuses on what students already know. By first grade, students are expected to differentiate between 2D shapes and 3D shapes.
2. Shapes, Shapes, Shapes by Tana Hoban. This is a great book for first graders to identify new shapes. This book also focuses on shapes in our everyday lives. This book talks about shapes in more details. For example, talks about geometric patterns and shapes within shapes.
3. This is a video that focuses on 3D shapes. Kindergarteners mainly learn about 2D shapes because they are easier to learn for students who are just being introduced to geometry. This video also has a song that encourages students to participate. Moreover, the video makes inferences to every day objects that we see.
Lesson Plans
1. http://www.atozteacherstuff.com/pages/410.shtml. Where is triangle? This is a fun lesson plan that have all the students participating in a song activity. The students have shapes taped to their fingers. They have to find which shape is attached to which finger. By adding a song the teacher can really make the lesson plan stand out.
2. http://www.atozteacherstuff.com/pages/508.shtml. Fun with shapes. Students are asked to draw a shape, cut it, and then paste it into many shapes to create an object. For example, students can use circles to create a flower.
2. http://www.atozteacherstuff.com/pages/508.shtml. Fun with shapes. Students are asked to draw a shape, cut it, and then paste it into many shapes to create an object. For example, students can use circles to create a flower.