LEARN NC

K–12 teaching and learning · from the UNC School of Education

Numbers many ways

http://illuminations.nctm.org/LessonDetail.aspx?ID=L27

A lesson plan for grades K–2 Mathematics

Learn more

Help

Please read our disclaimer for lesson plans.

Legal

This Illuminations lesson is the fifth of an eight-part unit titled “Begin With Buttons.” In this lesson, students work with subtraction at the intuitive level as they explore number families and ways to decompose numbers to 10. They will also identify members of “fact families.”

This lesson is referenced in the Illuminations unit plan titled “Begin with Buttons” and is related to the Illuminations lessons titled “Button Trains,” “Many Sets of Buttons,” “How Many Buttons?,” “More and More Buttons,” “Lost Buttons,” “Shirts Full of Buttons,” and “Begin with Buttons: Looking Back and Moving Forward.”

North Carolina Curriculum Alignment

Mathematics (2004)

Grade 1

  • Goal 1: Number and Operations - The learner will read, write, and model whole numbers through 99 and compute with whole numbers.
    • Objective 1.01: Develop number sense for whole numbers through 99.
      • Connect the model, number word, and number using a variety of representations.
      • Use efficient strategies to count the number of objects in a set.
      • Read and write numbers.
      • Compare and order sets and numbers.
      • Build understanding of place value (ones, tens).
      • Estimate quantities fewer than or equal to 100.
      • Recognize equivalence in sets and numbers 1-99.
    • Objective 1.03: Develop fluency with single-digit addition and corresponding differences using strategies such as modeling, composing and decomposing quantities, using doubles, and making tens.
    • Objective 1.04: Create, model, and solve problems that use addition, subtraction, and fair shares (between two or three).

Grade 2

  • Goal 1: Number and Operations - The learner will read, write, model, and compute with whole numbers through 999.
    • Objective 1.01: Develop number sense for whole numbers through 999.
      • Connect model, number word, and number using a variety of representations.
      • Read and write numbers.
      • Compare and order.
      • Rename.
      • Estimate.
      • Use a variety of models to build understanding of place value (ones, tens, hundreds).
    • Objective 1.03: Create, model, and solve problems that involve addition, subtraction, equal grouping, and division into halves, thirds, and fourths (record in fraction form).
    • Objective 1.05: Create and solve problems using strategies such as modeling, composing and decomposing quantities, using doubles, and making tens and hundreds.
  • Goal 5: Algebra - The learner will recognize and represent patterns and simple mathematical relationships.
    • Objective 5.02: Write addition and subtraction number sentences to represent a problem; use symbols to represent unknown quantities.

Kindergarten

  • Goal 1: Number and Operations - The learner will recognize, model, and write whole numbers through 30.
    • Objective 1.01: Develop number sense for whole numbers through 30.
      • Connect model, number word (orally), and number, using a variety of representations.
      • Count objects in a set.
      • Read and write numerals.
      • Compare and order sets and numbers.
      • Use ordinals (1st-10th).
      • Estimate quantities fewer than or equal to 10.
      • Recognize equivalence in sets and numbers 1-10.