First graders learn that some numbers tell how many and others tell what place something is in, like first in line or third prize, and check what they know about ordinal numbers.
Students will be able to…
In a race it matters who came first, second, and third, not just how many ran. How are ordinal numbers different from counting numbers?
Project this and answer each question about ordinal numbers, which tell position or order — read the explanation after each one.
Tap any phase to open the teacher moves and student actions.
In a race, it matters not just how many runners there are but who came first, second, and third. Those are ordinal numbers. How are they different from counting numbers?
Students answer questions about ordinal numbers.
Students name positions in a line.
Students label positions.
Students reflect on ordinal numbers.
Aligned to the Common Core State Standards for Mathematics.
Understand the relationship between numbers and quantities, including order.
Count and represent a number of objects with a written numeral.
Attend to precision.
Look for and make use of structure.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students draw five things in a row, label first through fifth, and circle the third, so ordinal positions become clear. A printable ordinal-numbers worksheet is in the Mathematics library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.