Comparing Numbers
One Less

Identify numerical values, compare numbers by finding one less, and order numbers in ascending and descending sequences with this interactive unit.
one less
Description

By the end of this unit, students will be able to:

  1. identify and recognize numerical values and their corresponding quantities;
  2. compare numbers by identifying the number that is one less than a given number;
  3. order numbers in ascending and descending sequences, emphasizing the concept of “one less.”

Year 1 Number: Number and Place Value

  • Count to and across 100, forwards and backwards, beginning with zero or 1, or from any given number.
  • Identify and represent numbers using objects and pictorial representations including the number line, and use the language of: equal to, more than, less than (fewer), most, least.

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