Resources and Tools for Elementary Math Specialists and Teachers
Share this


Falling Problems

This Tetris-like interactive game develops estimation fluency with addition and subtraction. Users choose either operation, or a combination of both, and a difficulty range (0-20, 0-200, 0-2000). Sums and/or differences drop from the top of the field, and players use arrow keys to indicate whether they belong below or above the center of the range, or exactly on it. Created in The Netherlands, the applet contains a few Dutch words, but students will quickly figure out their meanings.
Contributed by: Frans Moerlands - Author, Freudenthal Institute - Publisher
Math TopicNumber Sense, Basic Operations, Mathematical Processes
Grade Level1, 2, 3, 4, 5
Resource TypeActivity, Game, Interactive Media

  • Additional Information
    • AudienceLearner
    • LanguageEnglish (USA)
    • Education Topic
    • Interdisciplinary Connection
    • Professional DevelopmentNo
    • ContributorFrans Moerlands - Author, Freudenthal Institute - Publisher
    • Publication Date2003
    • Rights(c) 2003 - 2009
    • AccessFree access
  • Standards
    • Common Core State Standards for Mathematics

      Select a standards document:

  • User Comments
    • 4
      mental math trainer
      By Uncle Bob on 04/17/2013 - 10:59
    • This game should improve the ability to estimate sums and differences. Correct answers in this "tetris-like" game are rewarded with more space to play (more time to react and respond). Easy to use.