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Illustrative Mathematics

The Geometry of Letters

For Teachers 3rd - 5th Standards
Use the alphabet as a tool for teaching your class about geometric figures. Break apart capital letters into line segments and arcs. Classify angles as right, acute, or obtuse. Identify parallel and perpendicular lines. An excellent...
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Worksheet
1
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Curated OER

Lines of Symmetry, Shapes and Symbols

For Students 3rd - 5th Standards
Which shapes are symmetrical? Third graders decide which shapes have lines of symmetry, and which shapes are not symmetrical. They work on 13 shapes and symbols, four of which have lines already drawn through them. Use this resource to...
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PPT
Curated OER

Points, Lines, Segments, and Rays Lesson 15-1

For Teachers 4th - 5th Standards
Some of the most important vocabulary in the study of geometry is presented here. In this PowerPoint, learners view the definitions for points, lines, segments, and rays. The definitions and graphics are clear, and kids are also coached...
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Interactive1:29
Scholastic

Study Jams! Types of Lines

For Students 4th - 9th Standards
Get jamming with lines and sing along to this karaoke that reviews the main types of lines. Your learners can't forget the main properties of lines when they sing the chorus on the karaoke song after the included slide show. The slides...
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Worksheet
Mathster

Line and Rotational Symmetry

For Students 4th - 8th Standards
Challenge young mathematicians' understanding of symmetry. Provided with images of different shapes, letters, and national flags, students are tasked with identifying the lines of symmetry and order of rotational symmetry associated with...
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Handout
McGraw Hill

Lines and Angles

For Students 4th - 7th Standards
Why was the obtuse angle upset? Because it was never right! A valuable resource is loaded with background information on types of angles and lines. Learners review the characteristics of parallel, perpendicular, and intersecting lines,...
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Lesson Plan
Curated OER

Perpendicular Lines

For Teachers 3rd - 6th
In this perpendicular lines practice worksheet, young scholars find and list examples of perpendicular lines at home, at school, and outside.
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Worksheet
Curated OER

Trace a Line of Symmetry

For Students 3rd - 4th
In this lines of symmetry worksheet, young math whizzes analyze pictures of eight common objects and draw a line of symmetry for each.
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Lesson Plan
Curated OER

Parallel Lines in Everyday Life

For Teachers 3rd - 6th
In this identifying parallel lines worksheet, learners discover examples of parallel lines at school, home, and outside and list them on a chart. Students write at least 10 short answers.
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Worksheet
Curated OER

Are the Dotted Lines, Lines of Symmetry?

For Students 3rd - 5th
Here is a geometry skills practice instructional activity in which learners respond to eight questions that require them to identify lines of symmetry.
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Worksheet
Curated OER

Is This a Line of Symmetry?

For Students 4th - 6th
Here is a geometry skills practice instructional activity in which learners respond to six questions that require them to identify images that have symmetry.
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Worksheet
Curated OER

Points, Lines, and Line Segments - Homework 16.1

For Students 4th - 5th
In this geometry worksheet, students complete a homework assignment in which they name 3 lines and line segments. They write parallel, intersecting, or perpendicular, to describe the relationships between 4 pairs of lines. They draw an...
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Worksheet
Curated OER

Line Symmetry

For Students 3rd - 5th
Teach your class about symmetry lines with this resource. This worksheet defines symmetry and explains lines of symmetry and how they work. Learners examine a variety of examples before drawing lines of symmetry in 5 figures. The...
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Worksheet
Curated OER

Tell Me! Geometry

For Students 4th - 5th
In this geometry and measurement activity, students solve 20 problems pertaining to parallel lines, geometric figures, right angles and simple measurements.
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Lesson Plan
Exploratorium

Geometry Scavenger Hunt

For Teachers 1st - 4th
One of the nice things about geometry is that it's all around us. The lesson presented here has elementary schoolers go out to the playground to identify and name a variety of geometric shapes. They perform a "geometric scavenger hunt"...
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App
iMagine Machine

The Land of Venn - Geometric Defense

For Students 2nd - 5th Standards
Young mathematicians use their geometry skills to save the Land of Venn in an engaging math game. A fun way to reinforce children's understanding of basic geometric figures and shapes.
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Worksheet
Math Mammoth

Parallel & Perpendicular Lines

For Students 4th
In this geometry learning exercise, 4th graders list the lines that are parallel or perpendicular to each other. Then they mark with one color the line segments that are parallel and another color those that are perpendicular.
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Lesson Plan
Curated OER

Symmetrical Geometry Paintings

For Teachers 3rd - 5th
Here is a clever, cross-curricular lesson that combines art and geometry. Learners design a painting that uses geometrical shapes and is symmetrical. Sponge-shaped geometrical figures are used to design half a page and fold them to...
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Lesson Plan
Curated OER

Marshmallow Geometry

For Teachers 3rd - 6th
In this three-dimensional shapes geometry lesson plan, learners identify geometric solids and name their properties. They define "face," "edge," and "vertex," and construct geometric solids using marshmallows as vertices and toothpicks...
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Lesson Plan
Curated OER

Parallel and Perpendicular Lines

For Teachers 4th - 6th
Learners study parallel and perpendicular lines. For this parallel and perpendicular lesson, pupils explore 2-D shapes and determine if the sides are parallel or perpendicular.
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Worksheet
Curated OER

Kindergarten Geometry: Symmetry

For Students K
The quality of the images on this learning exercise is poor, but it could be a simple way to review the principle of symmetry with young mathematicians. Students are presented with six images. They must first identify which of these...
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Worksheet
Curated OER

Kindergarten Geometry: Symmetry

For Students K
Although the quality of the images on this activity is poor, this might be a quick and easy way to review the principle of symmetry with young mathematicians. Students are presented with six images. They must first identify which of...
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Worksheet
Curated OER

Lines of Symmetry - Rotational Symmetry

For Students 3rd - 5th
In this geometry skills practice worksheet, students examine 3 images and determine whether or not they have rotational symmetry.
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Lesson Plan
Curated OER

Line Hunt

For Teachers K - 3rd
Students identify lines in everyday images.  In this art analysis lesson, students practice drawing diagonal, vertical and horizontal lines on pieces of chart paper.  Students examine a page from a magazine and identify the different...

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