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Fourth Grade Unit 6: Geometric Figures

Page history last edited by Gena Barnhill 9 months, 3 weeks ago

 

 

4th Grade Unit 6: Geometric Measurement

Unit Driving Question

How do geometric terms apply to real-world objects?

 

Essential Questions:

1. How are points related?

2. How can we use measurement to understand and compare angles?

3. How can we identify similarities and differences in geometric figures?

 

Big Ideas

  1. Polygons are made up lines, line segments, rays, points, and angles.
  2. Quadrilaterals can be compared and classified based on the characteristics of their sides and angles. 
  3. Specific tools can be used to measure angles, in geometric figures and real-world objects.
  4. Three-dimensional figures can be compared based on a variety of geometric attributes. 

 

Technology Resources

Launch Task 

  •  Shape Up - Select the game(s) that best fit the needs of your students. Students will use the shape cutouts to explore different geometric figures and practice describing attributes of the figures.

 

Big Ideas for Development Lessons

4 Weeks (approximately 1 week per big idea) 

Big Idea 1: Polygons are made up of lines, line segments, rays, points, and angles.

OAS-M: 4.GM.1.1

 Collaborative Engagement:

  • What makes a shape? In this task, students sort shapes based on any attributes they choose. This opens a great discussion about vocabulary and angle properties students are already familiar with.

 

Key Resources:

  • Parallel and Perpendicular Lines - In this lesson, students will connect parallel lines to trains and practice drawing parallel and perpendicular lines in different ways.
  • The Geometry of Letters - Students will study the letters of the alphabet, looking for line segments, angles, parallel and perpendicular lines and more.
  •  Line Segments, Rays, and Angles - In this lesson students will spend much of their time justifying ideas about lines and line segments being the same or different and how rays and lines are connected. Students will also have the chance to draw line segments, rays, and angles as well as go on an angle scavenger hunt. (betterlesson.com)

 

Evidence of Understanding:

  • Identify parallel and perpendicular lines, line, segments, points, rays, angles, and endpoints in a variety of contexts.
    • Use these terms to describe what makes up a polygon.
  • Explain how perpendicular line and right angles are related.
  • Recognize line segments and rays are both found within a line. 

Big Idea 2: Quadrilaterals can be compared and classified based on the characteristics of their sides and angles. 

OAS-M: 4.GM.1.2

 

 Collaborative Engagement:

Pretzel Quadrilaterals - Students will use pretzel sticks to construct quadrilaterals. Students will study the attributes of the quadrilaterals they create to name the quadrilaterals.

 

Key Resources:

Classification of Quadrilaterals - Students will classify quadrilaterals. Students will study the attributes of the quadrilaterals they create to name the quadrilateral.

 

Quadrilateral Roundup - Students use Venn Diagrams to compare quadrilaterals based on various attributes. Students justify their sorts.

 

Defining Attributes of Parallelograms and Rectangles - Students will identify examples and non-examples of parallelograms and rectangles and explain why the quadrilaterals are not examples using attributes of parallelograms and rectangles.

 

Formative Assessment:

 

 

Evidence of Understanding:

  • Identify parallel and perpendicular lines, line, segments, points, rays, angles, and endpoints in a variety of contexts.
    • Use these terms to describe what makes up a polygon.
  • Explain how perpendicular line and right angles are related.
  • Recognize line segments and rays are both found within a line. 

Big Idea 3: Specific tools can be used to measure angles in geometric figures and real-world objects.

OAS-M: 4.GM.2.1

Collaborative Engagement:

Protractor Intro - Students will get an introduction on how to use a protractor with hands-on practice.

 

Key Resources:

How to use a Protractor - This would make a great resource to put in an interactive notebook as a reference.

 

How to Measure and Create Angles - Students work cooperatively to learn about using a protractor.

 

Measuring Angles Activities - Students can measure a variety of angles with these ideas.

 

Formative Assessment:

 

 

Evidence of Understanding:

  • Understand a protractor is a tool used for measuring angles.

    • Discern the difference between the two sets of numbers on the protractor and understand how to use them. 

    • A protractor can be used for small and large objects but may require extending lines, etc..

 

 

 

 

Big Idea 4: Three-dimensional figures can be compared based on a variety of geometric attributes.

OAS-M:  4.GM.1.3

 Collaborative Engagement:

 

Intro to 3D Shapes - Students use hands-on examples and internet to explore vocabulary for this unit.

 

Key Resources: 

Comparing Faces, Edges, Vertices - This is an interactive notebook page and additional activities.

 

Pyramids - This lesson will help students identify a variety of pyramids.

 

3D Shapes - This site has 9 of the 3D shapes and links to definitions and questions for each one.

 

Formative Assessment:

 

   

Evidence of Understanding:

  • Use vocabulary face, edge, vertex, to compare three-dimensional figures.

  • Recognize similarities in pyramids and be able to identify the base and number of faces as the differences.

    • Understand the base of a pyramid correlates with.

Unit Closure: 

 

 

 

 

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