# CONTACT CCSD21

Wheeling, Illinois 60090

Phone: 847-537-8270

Superintendent: Dr. Michael Connolly

# VISIT A SCHOOL

### CCSD21 is a school district comprised of 13 schools across 6 different communities in the northwest suburbs of Chicago.

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### BECOME A MEMBER OF THE SCHOOL DISTRICT 21 TEAM

School District 21 prides itself on its Professional Learning Community and its rich tradition of professional collaboration, high levels of professional development, and family-like atmosphere. If you see the opportunity to work with colleagues in making a difference in the lives of students and families in a truly diverse setting, School District 21 seeks your application.

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# Mathematics

## Geometry

### Power Standards

• Represent real-world and mathematical problems by graphing points (first quadrant) and interpret points in the context of the situation. (5.G.2)

### Concepts and Skills

* Power Standard Content

• * Name, locate and plot points on a coordinate grid
• * Use rules to generate transformations of plane figures on a coordinate grid
• * Interpret coordinate values of points in the context of a situation
• Classify 2-dimensional figures based on their properties
• Define, classify, and draw angles according to their measures
• Explore angle types and relationships between angles and polygons
• Identify, describe and sketch examples of reflections, translations and rotations

### Language Usage

• A student in 5th grade can demonstrate the ability to apply and comprehend critical language by naming, locating and plotting points on a coordinate grid and explaining the meaning of a point in a given situation.

### Content-Specific Vocabulary

• Data set
• Coordinate grid
• Ordered pair
• Axes
• x-axis
• y-axis
• Horizontal
• Vertical
• Plane
• Coordinates
• Perpendicular
• Origin
• Congruent
• Reflections
• Translations
• Rotations
• 2-dimensional figures
• Polygons
• Attributes
• Angles
• Right
• Obtuse
• Acute
• Straight
• Reflex
• Property
• Triangle
• Pentagon
• Hexagon
• Octagon

• Classify
• Interpret
• Hierarchy
• Define
• Analyze

### Essential Understandings

• 2-dimensional figures can be classified into categories based on their properties / attributes.
• An ordered pair of numbers defines a specific point on a plane.

### Factual Guiding Questions

• How does changing the ordered pairs of a set of points transform a figure?
• What does the first number in the set of an ordered pair tell you? The second number?
• What are attributes of different polygons? How are these attributes helpful in classifying polygons?
• What is the x-axis? Y-axis?
• What does it mean to translate a shape? Rotate a shape? Create a reflection?
• How do the relationships between sides and angles change in different polygons?

### Conceptual Guiding Questions

• Why is it helpful to classify 2-dimensional figures based on their properties?
• How would you use angles, angle measures, and properties of polygons to solve real-life problems?

### Engaging/Debatable Guiding Questions

• Can 2-dimensional figures ever be classified into more than one category?
• Can multiple 2-dimensional figures be created given a set of defining attributes?