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FRACTIONS ON A NUMBER LINE—SUMS OF ONE

Grades: 3‒4

Students construct and add fractions with the same denominators on a number line to find different combinations of fractions that sum to 1.

OBJECTIVES 
  • Students will use a number line model to explore fractions.
  • Students will understand the relationship between the visual representation of fractions and their symbolic forms.
  • Students will add fractions with the same denominators.
  • Students will develop strategies for finding two or more fractions that add up to 1.

COMMON CORE CONNECTIONS 
Mathematical Practices

(1) Make sense of problems and persevere in solving them; (2) Reason abstractly and quantitatively; (3) Construct viable arguments and critique the reasoning of others; (5) Use appropriate tools strategically; (7) Look for and make use of structure.

Content Standards

3.NF1, 2; 4.NF3

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This activity is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License: http://creativecommons.org/licenses/by-nc-sa/3.0/. If you adapt and/or share this activity, you must attribute it to "KCP Technologies, a McGraw-Hill Education Company." You may distribute it only non-commercially under the same or similar license.


This material is based upon work supported by the National Science Foundation under KCP Technologies Award ID 0918733, with grant period September 1, 2009 through August 31, 2013. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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