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Lesson Plan

8. Comparing numerals using a number path (C)

teaches Common Core State Standards CCSS.Math.Content.K.CC.C.6 http://corestandards.org/Math/Content/K/CC/C/6
teaches Common Core State Standards CCSS.Math.Content.K.CC.C.7 http://corestandards.org/Math/Content/K/CC/C/7
teaches Common Core State Standards CCSS.Math.Practice.MP2 http://corestandards.org/Math/Practice/MP2
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
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Lesson objective: Students will extend their understanding of work with concrete objects when comparing to using the counting sequence and the number path to compare two numerals and determine which has the greater value.

Students bring prior knowledge of comparison from K.CC.6. This prior knowledge is extended to making a connection to the relationship between quantities and written numerals, to comparing two numerals as they determine the value of each numeral. A conceptual challenge students may encounter is thinking about what each numeral represents and how they can apply that to written numerals.

The concept is developed through work with  a number path, which will provide a visual of the counting sequence. This work helps students deepen their understanding of number because using the words greater than, equal to and less than will prepare students to make precise comparisons in later work (such as 1 more, 1 less, 2 more, 2 less).

Students engage in Mathematical Practice 2 (Reason abstractly and quantitatively) as they connect the concrete representations of numbers to the written numerals. They also use Mathematical Practice 6 (Attend to Precision) as they use correct compare language greater than, less than and equal to.  Students will use the counting sequence and the understanding that when we count the next number is more. It is greater. Students will also use what they know about the structure of the ten-frame to help create a visual representation of each numeral.  

Key vocabulary:

  • compare
  • counting, counting sequence
  • equal, equal to
  • greater, greater than
  • less, less than
  • more, more than
  • number path
  • ten-frames

Special materials needed:

  • Number path
  • Numeral cards with ten-frames (for additional practice)
  • Counters or connecting cubes for support (optional)

 

 

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Comparing numbers

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