Play Number Flash: Even or Odd. Tell students
that you are going to briefly display a card showing
a strip of squares. Students are to decide if the number of squares is even or odd and decide what number is showing.
After displaying the card, ask:
- Is the number even or odd?
- How did you decide?
- How many squares are showing? How did you decide?
Continue playing for several other numbers.
Describe Even and Odd Numbers.
- Do you think the number 1 is even or odd? Why? (odd; It does not have a pair and there is one left over.)
- Do you think the number zero is even or odd? Why? (even; There aren't any leftovers.)
- Do you think the number 30 is even or odd? (even) How did you decide?
- How would you describe an even number to your friend? (An even number of things can be organized into pairs without any leftovers.)
- How would you describe an odd number to your friend? (An odd number of things will have a leftover when it is organized into pairs.)
Assign the Even or Odd? page in the Student Activity Book.
Use Check-In: Question 3 on the Even or Odd? page in the
Student Activity Book to assess students' abilities to identify
even and odd quantities using groups of two and groups of
two with a leftover [E2] and show their thinking [MPE5].
Play Number Flash: Even or Odd to provide targeted practice
with identifying even or odd numbers.
Display the Math Practices page in the Student
Activity Book Reference section and refer students to
Math Practice 5, Show my work. For Check-In:
Question 3, remind students they need to tell if the
shape is even or odd. Then they need to think about
how they know it is even or odd. They can show in
pictures or tell in words what they are thinking so
someone else can understand their thinking.
Some students may have difficulty writing about their thinking. They can tell their responses to their partners first before
they write or they can record their answers or dictate their
answers to an adult.
