|Second Look - Symmetry|
Short Takes: Another Good Idea: Pasta Symmetry
Authentic assessment. Article
discusses students creating and using representations to communicate
mathematical situations, namely, symmetry. Quick Reads provides readers with activities or ideas for the middle school classroom that are quick
Teaching Mathematics through the Art of Kolam
The mathematics of kolam, a traditional art form of southern India. Article discusses simple graph theory, Euler paths and circuits, numerical patterns, symmetry, and growing patterns. Includes student work samples and suggestions for organizing data.
Irrational Numbers Can In-Spiral You
An instructional process to help students visualize irrational numbers. Article discusses creating a spiral, called The Wheel of Theodorus, to construct and compare irrational and rational lengths. Includes student work to help the reader appreciate the possibilities.
Just Five Does It: Using Five Numbers to Make Patterned Squares
Creating mathematical art based on number patterns. Article discusses a process that integrates numbers and geometry resulting in attractive patterned squares. Activity may be done with paper and pencil or using computer software. Includes directions for creating patterns using Geometer's Sketchpad.
Illuminations Lesson: Understanding Congruence, Similarity, and Symmetry Using Transformations and Interactive Figures
translations, or slides; and reflections, or flips, are geometric
transformations that change an object’s position or orientation but not its
shape or size. The interactive figures in this four-part example allow a user
to manipulate a shape and observe its behavior under a particular
transformation or composition of transformations.
Principles and Standards: Geometry Standard for Grades 6-8
transformations and use symmetry to analyze mathematical situations