1.3 - Ordinal Position

The student

• given an ordered set of ten objects and/or pictures, will indicate the ordinal position of each object, first through tenth.

BIG IDEAS

• So that I can tell who who finishes first, second, third in a race or game
• So that I can describe our birth order in a family
• So that I can follow the directions to a recipe in the correct order (first add the water,......)

UNDERSTANDING THE STANDARD

• An understanding of the cardinal and ordinal meanings of numbers is necessary to quantify, measure, and identify the order of objects.
• An ordinal number is a number that names the place or position of an object in a sequence or set (e.g., first, third). Ordered position, ordinal position, and ordinality are terms that refer to the place or position of an object in a sequence or set.
• The ordinal position is determined by where one starts in an ordered set of objects or sequence of objects.
• The ordinal meaning of numbers is developed by identifying and verbalizing the place or position of objects in a set or sequence (e.g., the studentâ€™s position in line when students are lined up alphabetically by first name).
• Students at this level do not need to recognize or read the written words for ordinal numbers (i.e., first, second, third, etc.).
• Practical applications of ordinal numbers can be experienced through calendar and patterning activities.

ESSENTIALS

The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to

• Identify the ordinal positions first through tenth using ordered sets of 10 objects and/or pictures of such sets presented from
• left to right;
• right to left;
• top to bottom; and/or
• bottom to top.

KEY VOCABULARY

Updated: Aug 22, 2018