CONTACT CCSD21

999 West Dundee Road
Wheeling, Illinois 60090

Phone: 847-537-8270

Superintendent: Dr. Michael Connolly

School Board & Administration


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

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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

Operations and Algebraic Thinking

Critical Content

Power Standards

  • Write and evaluate numerical expressions (including those involving parentheses). (5.OA.1-2)

 

Concepts and Skills

* Power Standard Content

  • * Write and interpret numerical expressions including parentheses, brackets, braces
  • Describe and apply properties of arithmetic
  • * Evaluate expressions with parentheses, brackets, braces
  • Extend, describe, and create numeric patterns

 

Critical Language

Language Usage

  • A student in fifth grade can demonstrate the ability to apply and comprehend critical language by comparing numerical expressions verbally and in writing.

 

Content-Specific Vocabulary

  • Add
  • Subtract
  • Multiply
  • Divide
  • Sum
  • Difference
  • Product
  • Quotient
  • Numerical expression
  • Order of operations
  • Bracket
  • Parentheses
  • Greater than
  • Less than
  • Equal
  • Numeric patterns
  • Sequence
  • Rules

 

Process-Specific Vocabulary

  • Solve
  • Evaluate
  • Simplify
  • Deduct
  • Interpret
  • Describe
  • Create
  • Extend

 

Concept-Based Connections

Essential Understandings

  • Problem solving is simplified by choosing efficient strategies and number representations.
  • Numeric fluency includes both the understanding of and the ability to appropriately use numbers.
  • Algebraic representations can be used to generalize patterns and relationships.

 

Factual Guiding Questions

  • What is the order of operations?

 

Conceptual Guiding Questions

  • How does evaluating numerical expressions lead to better problem solving?
  • Why do mathematicians need to follow the order of operations?
  • How can expressions look different but be equal?

 

Engaging/Debatable Guiding Questions

  • Is it always alright for two people to solve a problem in different ways? Why/why not?