Oswego City School District
Regents Exam Prep Center: Reflections: Line and Point
Lesson and activities focusing on line reflection. Here you will find a detailed explanation of the concept with picture examples, opportunities for interactive practice, and supporting classroom activities in the teacher resource pages.
University of Cambridge
University of Cambridge: Nrich: Symmetry Challenge
Sharpen your logic, symmetry, and pattern recognition skills while working on this challenge. Solution included.
Maths Challenge
Maths challenge.net: Lines of Symmetry
A "one star" geometry problem that requires finding the visual pattern and applying logic with pattern recognition to find the lines of reflective symmetry.
National Council of Teachers of Mathematics
The Math Forum: Rotational Symmetry
This is a good site for elementary teachers to help educate students about symmetry by using pattern blocks. This link has multiple activities that the instructor could use including technological and standard activities.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Symmetry
Get independent practice working with scientific and standard notation. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Oswego City School District
Regents Exam Prep Center: Photo Activity for Symmetry
This activity has instructions for making symmetrical portraits of the human face using a digital photograph. It's an activity students of all ages would enjoy.
E-learning for Kids
E Learning for Kids: Math: Dojo: Shape & Space: 3 D Shapes and Symmetry
Meet Morisu in the dojo. Help him with symmetrical objects and shapes!
Khan Academy
Khan Academy: Draw Lines of Symmetry and Symmetrical Figures
Practice drawing lines of symmetry and creating symmetrical figures.
CK-12 Foundation
Ck 12: Interactive Geometry: 2.6 Reflection Symmetry
Explore reflection symmetry in some different shapes.
CK-12 Foundation
Ck 12: Geometry: Lines of Symmetry
[Free Registration/Login may be required to access all resource tools.] Identify line, bilateral, and rotational symmetry.
E-learning for Kids
E Learning for Kids: Math: African Village: 2 D Space and Capacity
Visit this African village and learn about symmetry and parts of 2D shapes. Users can first watch a video that helps with the concepts of finding a vertex and a line of symmetry. They can then practice their knowledge on four activities...
CK-12 Foundation
Ck 12: Algebra: Midpoint Formula
[Free Registration/Login may be required to access all resource tools.] This concept introduces midpoints of line segments.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is Symmetry in Math
Defines symmetry, line of symmetry, point symmetry, and gives examples.
University of Georgia
University of Georgia: Inter Math: Line of Symmetry
This site gives a description of a line of symmetry along with an with a visual representation. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving lines...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Cone Symmetry
This question and answer site examines why a circular cone has an infinite number of lines of symmetry.
Other
Finite Geometry Notes: Diamond 16 Symmetry Puzzle
At this site see if you can solve the "Diamond 16" puzzle. Change the patterns to create ordinary or color exchange symmetry. This is just one of several challenging puzzles at this site. Links to similar puzzles and games.
Illustrative Mathematics
Illustrative Mathematics: 4.g Lines of Symmetry for Quadrilaterals
This task provides learners a chance to experiment with reflections of the plane and their impact on specific types of quadrilaterals. Aligns with 4.G.A.3.
Scholastic
Scholastic: Symmetry Surprise
A fun fingerpaint activity that teaches about the concept of symmetry.
University of Cambridge
University of Cambridge: Nrich: Happy Halving
On this one page website expand your logic, symmetry and pattern recognition knowledge while working on this challenge. The solution is available to double check your solution.
The Math League
The Math League: Symmetric Figure
This tutorial features several examples of symmetric figures to explain how the line of symmetry works.
Texas Instruments
Texas Instruments: Mapping a Leaf
In this activity, students will identify and record ordered pairs from a coordinate plane. They will examine symmetry about the axes, reflections, and symmetry in nature. They understand geometric concepts like area and perimeter, and...
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Using Symmetry to Create a Community Quilt
This site provides a hands-on lesson plan to make a quilt using symmetry.
Other
Earth Measure: Native American Geometry Designs: Mathematical Landscaping
If you want to plant a class garden, this is a great resource for combining geometry, Native American studies, and rocks.
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