Symmetry Construction

Grade Level(s): 4^th and 5^th Grade

Content Area:                                                                        Process Area:

Numbers and Operations                                           Problem-Solving

Algebra                                                           Reasoning and Proof

Geometry                                                                    Communication

Measurement                                                             Representation

Data Analysis, Statistics, and Probability                    Connections

Common Core Standards:

CCSS.MATH.CONTENT.4.G.A.3: Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.

Targeted Needs of Student:

Reviewing, assessing, or practicing symmetry, introducing translations, building irregular shapes, understanding the line of symmetry.

Goal:

Providing students with a way to kinesthetically represent symmetrical shapes.

Materials Needed:

1. Pattern blocks (enough for each student to have a lot
2. Ruler for each student

Explanation/Summary:

Students will use pattern blocks to make shapes. They must use a ruler to divide the shape and make the shape symmetrical. This activity can be used for centers, as a whole class instruction to reinforce symmetry, or as individual work. This is great for a quick assessment to see if students understand symmetry and also it can be used to understand translations.

 

Resource:

http://teaching-in-oz.blogspot.jp