Geometry
...
Subject Area: Mathematics (B.E.S.T.) | Grade Level: 3
Lesson Length: 30 minutes
Keywords/Tags: Geometry, Quadrilaterals, Attributes, Sides, Angles
Lesson Description: In this lesson, students will understand the attributes of different geometric shapes. Students will know the angles, the number of sides, and what the shapes are called.

  • Other • Reason with shapes and their attributes. MGSE3.G.1 Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories. rn• MGSE3.G.2 Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape.rn• Geometric measurement: understand concepts of area and relate area to multiplication and to addition. MGSE3.MD.7 Relate area to the operations of multiplication and addition. a. Find the area of a rectangle with whole-number side lengths by tiling it and show that the area is the same as would be found by multiplying the side lengths. b. Multiply side lengths to find areas of rectangles with whole number side lengths in the context of solving real world and mathematical problems and represent whole-number products as rectangular areas in mathematical reasoning. c. Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b + c is the sum of a × b and a × c. Use area models to represent the distributive property in mathematical reasoning.
Video : Recognizing Shapes
Instructions: Please watch the following video as many times as needed before starting to go through other lesson pages. Understanding the content of the video is very important since the lesson activities will be all about this video content.
Reading : Geometric Shapes
Instructions: Please read the following article as many times as needed (aloud and silent) before starting to go through the rest of the lesson pages. Understanding the content of this passage is very important since the following lesson activities will be all about this content. Feel free to print the article if needed.

Geometric Shapes can be so much fun to lea about! They are all unique in their own way, much like all of you!! 

Vocabulary: 

  • Quadrilateral: A polygon with four sides and four angles.  Ex. Rectangle, rhombus. 
  • Side: Line segments of a polygon. 
  • Symmetry: A plane figure that can be folded along a line so the two parts match. 
  • Trapezoid: A quadrilateral with one pair of parallel sides. 
  • Vertex: The point where two sides meet. 
  • Right Angle: An angle that is 90 degrees. 
  • Parallelogram: A quadrilateral where opposite sides are parallel.

 

Assignment : Geometric Animal

Students will create a geometric animal. 

Process: 

1. You will research any of the geometric shapes below: 

  • triangle 
  • square 
  • rectangle 
  • rhombus
  • quadrilateral 
  • trapezoid

2. You will choose any animal in the world (real or make believe) whichever you would like to do and that you could graphically represent using only geometric shapes. 

3. Research the animal to get background history for the background information piece of this activity. Include as much factual information if the animal is real and if the animal is not real, you must present "facts" as if the animal is real. 

4. Include animal habitat, adaptations, needs for survival, and a detailed description of your animal. 

5. Once you have done research, begin to sketch your animal our using only geometric shapes. You may choose to use construction paper and cut the shapes out, or another method of art. 

Quiz : Geometric Shapes
Instructions: Please complete this quiz by choosing the correct answer for each question. You can take this quiz as many times needed.
Question #1

What is a quadrilateral? 

Question #2

What is a trapezoid? 

Question #3

What is a right angle? 

Question #4

Which shape is an example of a quadrilateral?

Question #5

What is a parallelogram?