Unit One-Naming and Constructing Geometric Figures
Anoka Hennepin K-12 Curriculum Unit Plan
Department: Elementary Math
Unit Title: Unit One-Naming and Constructing Geometric Figures
Grade Level: Four
Number of Lessons/Days: 12
Unit Summary:
The purpose of the first four days of this unit is to build routines to support math work throughout the year, as well as solidify studnet
understanding of the properties of addition and subtraction with use of basic facts, Inverse Operation, and Distributive Property. The rest of the
unit focuses on building students‘ understanding of geometry. The key concepts taught in this unit are polygon properties and how they are
classified. Spiraling concepts include: addition, subtraction and geometry. Note: lessons for drawing shapes with a compass do not reflect grade
level standards but can be used for differentiation.
DESIRED RESULTS (STAGE 1)
K-12 Program Understanding(s):
• III. Students will understand that spatial reasoning, geometric representations and measurement are useful in solving problems and
understanding our world
MN Standards:
Geometry and Measurement
4.3.1 Name, describe, classify and sketch polygons.
4.3.2 Understand angle and area as measurable attributes of real-world and mathematical objects. Use various tools to measure angles and areas.
MN Benchmarks Assessed
*Boldface indicates the part of the benchmark that is addressed in the unit.
Geometry and Measurement
4.3.1.1 Describe, classify and sketch triangles, including equilateral, right, obtuse and acute triangles. Recognize triangles in various contexts.
4.3.1.2 Describe, classify and draw quadrilaterals, including squares, rectangles, trapezoids, rhombuses, parallelograms and kites.
Recognize quadrilaterals in various contexts.
4.3.2.2 Compare angles according to size. Classify angles as acute, right and obtuse.
Overarching Understanding(s) from Curriculum Map/Course
Understandings:
Students will understand that…
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Essential Question(s) from Curriculum Map. Course Essential
Questions:
To understand, students will need to consider such questions as....
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Unit One-Naming and Constructing Geometric Figures
• two-dimensional and three-dimensional shapes can be described,
compared, analyzed and represented in space to interpret objects.
•
How could I use geometric shapes in my life?
Topical Understanding(s) Specific to Unit:
Students will understand that…
• polygons have properties that allow us to classify them in different
ways to be able to identify, compare, analyze and interpret real world
objects.
Topical Essential Questions for Unit:
To understand, students will need to consider such questions as....
• How are polygons named?
• How can polygons be classified?
• What tools can I use to draw polygons and other two
dimensional shapes?
• What are my roles and responsibilities during math routines?
• How can math resources help me understand what I am
learning?
To understand, students will need to…
know… Students will need to know the following in order to… (e.g. facts, be able to… (Students will be able to DO.. skills, procedures,
concepts, generalizations, rules, theories, principles)
processes
• that polygons are closed figures composed of multiple line segments.
• distinguish the difference between line segments, rays and
polygons.
• the properties of polygons.
• classify polygons using their properties
Italicized words are words that students need to know for MCA testing. • classify angles as right, greater than 90 degrees, and less than
Please emphasize and use them often.
90 degrees
• Common Vocabulary:
o angles
o concave polygon
o congruent
o convex polygon
o difference
o endpoint
o n-gon/polygon
o line
o line segment
o parallel
o parallelogram
o point
o polygon
o quadrangle/quadrilateral
o perpendicular lines
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Unit One-Naming and Constructing Geometric Figures
o point
o ray
o rhombus
o right angle
o side
o sum
o trapezoid
o Venn Diagram
o vertex (vertices)
•
Common misunderstanding(s):
o There is a difference between quandrangle and quadrilateral.
o Some polygons are not closed figures.
o A square is not a rectangle.
o A circle is a polygon.
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