In this activity, students are given a length, area, or quantity and have to determine whether it is greater or less than certain estimate depending on the scale. This activity allows students to practice estimation and explore the idea of a scale. This activity includes supplemental materials, including background information about the topics covered, a description of how to use the application, and exploration questions for use with the java applet.


  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
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Grade 2,Early Elementary,NSDL,Upper Elementary,Grade 3,Elementary School Programming,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-016,oai:nsdl.org:2200/20120614151529357T,Elementary School,Vocational/Professional Development Education,Informal Education,Mathematics,High School Programming,Middle School Programming



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike


Update Standards?

CCSS.Math.Content.2.MD.A.3: Common Core State Standards for Mathematics

Estimate lengths using units of inches, feet, centimeters, and meters.

CCSS.Math.Content.3.MD.C.5b: Common Core State Standards for Mathematics

A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.
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