4.G.A.3

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- 4.G.A.1Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.
- 4.G.A.2Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
- 4.G.A.3Recognize 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.

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## 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.

10 Lesson(s)

### Monster Plants

4th Grade Science »
Unit: Plants: Structures and Processes

4th Grade Science »
Unit: Plants: Structures and Processes

### Math Foldables - Geometry Assessment

4th Grade Math »
Unit: Geometry

4th Grade Math »
Unit: Geometry

### Little Bears Vest - A lesson on Symmetry

4th Grade Math »
Unit: Geometry

4th Grade Math »
Unit: Geometry

Big Idea:

#### In this partner work lesson, student work with pattern blocks and their creativity to design a shape pattern that has at least one line of symmetry. Students also find the fractional value of each shape and calculate in order to calculate the total value

Favorites
(4)

Resources
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Reflections
(1)

### Line Symmetry

5th Grade Math »
Unit: Targeted Skills Interventions

5th Grade Math »
Unit: Targeted Skills Interventions

### Writing About Symmetry: A sister lesson to Discovering the Meaning of Line Symmetry

4th Grade Math »
Unit: Geometry

4th Grade Math »
Unit: Geometry

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Second Grade

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HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

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First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

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Ninth and Tenth Grade

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Second grade

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