Teacher Resources for Instructional Planning


Grade 2, Math Std 8: Describe attributes of two-dimensional (plane) and three-dimensional (solid) figures using the terms side, surface, edge, vertex and angle. Identifying quadrilaterals, pentagons, hexagons, or octagons Identifying line symmetry in plane geometric figures Creating designs that exhibit line symmetry Recognizing the results of changing the position (transformation) of objects or shapes by sliding (translation), turning ( rotation), or flipping (reflection) Examples: sliding (vertically) turning flipping (horizontally) b b b d q b

Lesson Plans: Introduction to Symmetry for Primary Students These lessons are designed to guide young students through an introduction to symmetry by using Tangrams Communication, Geometry, and Spatial Sense Students will recognize, draw, and describe geometric figures. They will interpret positional words and integrate math and poetry by using the poem UShapes from the book, A Light in the Attic by Shel Silverstein. Introduction to Geometry for Primary Students Students will learn to recognize shapes, create patterns and to explore spatial relations and symmetry. It's a Perfect Fit Students will be able to identify, describe, and classify two-dimensional shapes. Block It Students will use problem solving strategies and mental mathematics to look for patterns and decide on the placement of pattern blocks. Making Triangles Investigating the Concept of Triangle and the Properties of Polygons. In this two-part activity students will use interactive geoboards to identify simple geometric shapes, describe their properties, and develop spatial sense. Greedy Triangle Unit This lesson introduces students to geometric shapes in an entertaining book by Marilyn Burns, The Greedy Triangle. Important Shapes Students will learn the attributes of 3 dimensional solid shapes. This lesson uses the book titled the Important Book by Margret Brown. Tantalizing Tangrams This is an introductory lesson using tangrams. Students will observe the seven geometric shapes that make up the tangram in a variety of ways that exhibit spatial relationships. They will have hands-on experiences using these tangrams to create new shapes. Finally, they will try to make the seven shapes form a square. Shape Hunt The purpose of this lesson is to give students opportunities to recognize, describe, build, and explore shapes in many different contexts. In this investigation, students look for examples of patterns and shapes in both the natural and designed world. What's in a Shape? The purpose of this lesson is to explore characteristics of shapes by making and using tangram sets. Students discover how the tangram pieces are related to one another and determine how many different combinations of the triangles, squares, and parallelograms can make a given shape.

Resources: Symmetry Surprise In this activity children will use finger paint and paper to learn about symmetry. The Symmetrizer! Students will investigate symmetry using and online kaleidoscope. Buzzing with Shapes Students will identify geometric shapes with this online interactive activity. Developing Geometry Understandings Develop geometry understandings and spatial skills through puzzle like problems with tangrams. Create Puzzling Pictures This site will give you a pattern for reproducing student tangrams with picture puzzles. A Maths Dictionary for Kids An animated dictionary for students to look up math terms.