This interactive Flash applet helps students explore concepts of ratio and proportion. It displays two containers, each with its own tap that can be set to deliver different-colored liquids in units of 1 to 10. A main tap can be set to deliver multiples of the amounts on the left- and right-hand taps. Proportion can be modelled using the drain container, which receives whatever is in the left- and right-hand containers. Users can choose the capacity of the containers, whether to hide or show the scales, and the size and visibility of the drain container. Clicking on the info button allows users to mouse over items to learn about them. This applet lends itself well for use with an interactive white board. A pdf guide to this collection of teaching applets is cataloged separately.


  • Mathematics > General
  • Education > General

Education Levels:

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Visualization,Grade 6,NSDL,Grade 5,Addition,Visual representation,Number concepts,Mathematics,Social Sciences,Arithmetic,Concept formation,Process skills,Number and operations,Upper Elementary,Ratio and proportion,Multiplication,Informal Education,Whole numbers,Middle School,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-027,Comparison of numbers,Elementary School,Representation,Operations,Mental calculation,oai:nsdl.org:2200/20140728161105456T,Vocational/Professional Development Education,Education



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