# 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

• Recognize and draw shapes (triangles, quadrilaterals, pentagons, hexagons) having specified attributes (e.g., number of angles, sides or faces). (2.G.1)

### Concepts and Skills

* Power Standard Content

• * Recognize and draw two-dimensional shapes with specified attributes
• Identify and describe three dimensional figures (spheres, cylinders, rectangular prisms, cones, pyramids)
• Create and complete two-dimensional symmetric shapes or designs
• Draw line segments and identify parallel line segments

### Language Usage

• A student in 2nd grade can demonstrate the ability to apply and comprehend critical language by describing the important attributes of shapes.

### Content-Specific Vocabulary

• Line segments
• Parallel
• Plane figures
• Circles
• Triangles
• Squares
• Rectangles
• Hexagons
• Trapezoids
• Rhombuses
• Spheres
• Cylinders
• Rectangular prisms
• Pyramids
• Cones
• Cubes
• Faces
• Sides
• Base
• Angles
• Two-dimensional
• Three-dimensional
• Solid

### Process-Specific Vocabulary

• Attributes
• Characteristics
• Properties
• Differences
• Classify
• Compare
• Describe
• Model

### Essential Understandings

• Analyzing the characteristics and properties of shapes leads to generalizations about geometric relationships.
• Shapes and patterns are all around us.

### Factual Guiding Questions

• How do we classify shapes?
• What is parallel?
• What geometric figures could you draw using line segments?
• What are some ways to find out how many lines of symmetry an object has? Why does this work?

### Conceptual Guiding Questions

• What are the important attributes of a shape?
• What are the similarities and differences between different polygons?
• Where might you see examples of parallel lines outside of school?

### Engaging/Debatable Guiding Questions

• How can you put together shapes and take them apart to form other shapes?
• What shapes can you make using only triangles?
• Is a square a rectangle? Is a rectangle a square? Why or why not?
• Why might someone need to know the geometric name of a 3-D shape in the real world?