Topic 14: Reason with Shapes and Their Attributes

Pacing (Duration of Unit):

Desired Results

Transfer:
1. Makes sense of problems and persevere in solving them.
2. Reason abstractly and quantitatively.
3. Construct viable arguments and critique the reasoning of others.
4. Model with mathematics.
5. Use appropriate tools strategically.
6. Attend to precision.
7. Look for and make use of structure.
8. Look for and express regularity in repeated reasoning.
Established Goals:
  • 1.G.1 Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.

Student "I Can" Statements:

  • I can tell and write time in hours and half-hours using any kind of clock.

Prerequisite Standards:
  • K.G.1: Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to.
  • K.G.2: Correctly name shapes regardless of their orientations or overall size
  • K.G.3: Identify shapes as two-dimensional (lying in a plane, “flat”) or three-dimensional (“solid”).
  • K.G.4: Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (e.g., number of sides and vertices/“corners”) and other attributes (e.g., having sides of equal length).
Big Ideas:

Geometric Figures
Two- and three-dimensional objects with or without curved surfaces can be described, classified, and analyzed by their attributes. An object's location in space can be described quantitatively.

Practices, Processes, and Proficiencies
Mathematics content and practices can be applied to solve problems.
Essential Questions:

  • How can you define shapes and compose new shapes?
Students will know...

  • Two-dimensional shapes have attributes that define them and make them different from one another.
  • Plane shapes have many properties that make them different from one another. These properties can be used to create shapes.


Vocabulary:

2-D shapes, sides vertices
Students will be skilled at...

  • Using attributes to match shapes.
  • Defining 2-D shapes by their attributes.
  • Using materials to build and draw 2-D shapes.

Assessment Evidence

Performance Assessment:
Other Evidence:

Formative Assessments:

Learning Plan

Learning Activities:

14-1 Two-dimensional shapes have attributes that define them and make them different from one another.
14-2 Two-dimensional shapes have attributes that define them and make them different from one another.
14-3 Plane shapes have many properties that make them different from one another. These properties can be used to create shapes.
Resources:

Problem of the Month:


Centers:



SmartBoard Resources/Games:

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