LEARN NC

K–12 teaching and learning · from the UNC School of Education

Goal 3

Geometry - The learner will perform simple transformations.

Objective 3.03

Identify and make:

  • Symmetric figures.
  • Congruent figures.

Resources aligned to this objective

Congruent Boxes
Students will decorate the congruent faces and edges of boxes (rectangular prisms) in exactly the same way.
Format: lesson plan (grade 2 Mathematics)
By Sarah McLaughlin.

Lesson plans on the web

Developing geometry understandings and spatial skills through puzzlelike problems with tangrams
This two-part tangram example demonstrates the potential for high-quality experiences provided by computer “shape” environments for students as they learn concepts described in the Geometry Standard. (Learn more)
Format: lesson plan (grade 2 Mathematics)
Provider: National Council of Teachers of Mathematics
Figuring in football
Students examine the influences of pattern, symmetry, and design in the real-world, by looking at a football field. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Finding Lines of Symmetry
Students identify and create lines of symmetry and congruent figures. (Learn more)
Format: lesson plan (grade 2 Visual Arts Education and Mathematics)
Provider: National Council of Teachers of Mathematics
Geoboards
Students identify and recognize triangles using multiple representations, locate triangles in their environment, and construct triangles. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Going Beyond with Triangles
Students create a class triangle book and work with tangrams. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
How Do You Build Triangles?
Students investigate basic properties of triangles. They then investigate the relationships among basic geometric shapes and communicate their findings to their peers. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
I've Seen That Shape Before
In a variety of activities, students use physical models of simple solid shapes, and identify these shapes in the real-world and in pictures found on websites. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Investigating the concept of triangle and properties of polygons
Describes activities using interactive geoboards to help students identify simple geometric shapes, describe their properties, and develop spatial sense. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Making Rectangles
Students use their knowledge of numbers, measurement and geometry to plan the steps necessary for a ladybug to draw rectangles of different sizes. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Making Triangles
Students use 45- and 90-degree angles to create triangles and develop an understanding of the relationship between angles and the shape of a triangle. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Making Virtual Triangles
Students identify and recognize triangles using multiple representations interactive electronic geoboards to explore the characteristics of triangles. (Learn more)
Format: lesson plan (grade K–2 Mathematics)
Provider: National Council of Teachers of Mathematics
Shape hunt
Students look for examples of patterns and shapes in both the natural and designed world. (Learn more)
Format: lesson plan (grade K–2 English Language Arts, Visual Arts Education, and Mathematics)
Provider: American Association for the Advancement of Science
Teaching shapes using read-alouds, visualization, and sketch to stretch
Students explore shape and pattern through an adapted sketch to stretch strategy and read-alouds of winter-themed books. (Learn more)
Format: lesson plan (grade K–2 English Language Arts and Mathematics)
Provider: IRA/NCTE