Number Line Frog Hop (Addition and Subtraction)


Live a frog's life as you hop along a number line in search of flies. Learn how addition and subtraction can be represented as movement along a number line. Fred the frog may even help you get better at adding and subtracting two-digit numbers in your head by decomposing them into tens and ones.

Screenshot of Number Line Frog Hop (Addition and Subtraction) Gizmo

LESSON MATERIALS:

LEARNING OBJECTIVES:

  • Add numbers using a number line.
  • Subtract numbers using a number line.
  • Decompose a two-digit number into tens and ones.
  • Mentally add/subtract by first adding/subtracting the tens and then the ones.

VOCABULARY:

  • add, difference, equation, subtract, sum

User Recommendations (5):

  • avatar
    Kids enjoyed this one.. Helpful in determining who "gets it"

    MATH:  4th Grade

    By: Stacey Sawyer (Maine) | Recommended 119 days ago

  • avatar
    nice and useful for kids

    MATH:  3rd Grade

    By: satam alshammary | Recommended 223 days ago

  • avatar
    I recommend using this Gizmo for adding and subtracting using the numberline

    MATH:  7th Grade

    By: Maribel Bernal (New Mexico) | Recommended 331 days ago

  • avatar
    This is great even for the upper level grades, SPED Students and ELL who need many reviews with visuals.

    MATH:  3rd Grade, 4th Grade, 5th Grade

    By: Maribel Bernal (New Mexico) | Recommended 337 days ago

  • avatar
    I love using this Gizmo to encourage students to think algebriacally!

    MATH:  3rd Grade, 4th Grade, 5th Grade

    By: Lisa Bickel (Virginia) | Recommended 396 days ago

User Testimonials

Critical Acclaim

  • Winner: Golden Lamp Award

    2010 AEP

  • Winner: Best Science Instruction Solution

    2010, 2007, 2006 SIIA CODiE Awards

  • Finalist: Best K-12 Instructional Solution

    2010 SIIA CODiE Awards

  • Winner: Best K-12 Instructional Solution

    2009 SIIA CODiE Awards

  • Winner: Award of Excellence

    2009, 2008 Tech and Learning Magazine

  • Winner: Distinguished Achievement Award

    2008, 2007, 2005 AEP

  • Finalist: Distinguished Achievement Award

    2010, 2009, 2006 AEP

  • Finalist: Golden Lamp Award

    2009, 2008, 2006 AEP

  • Finalist: Best Math Instructional Solution

    2009, 2008, 2006 SIIA CODiE Awards

  • Finalist: Best Instructional Solution, Science

    2009, 2008 SIIA CODiE Awards

  • Finalist: Best Instructional Solution, Online

    2006 SIIA CODiE Awards

  • Diamond Award in Mathematics

    District Administration Magazine

  • E-Learning Innovation Award

    Macromedia Corp.

  • Best Education Website

    Webby Awards

  • Three time Digital Dozen Honoree

    Eisenhower National Clearinghouse

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