Fourth graders learn two ways to write an amount bigger than one whole, as a mixed number and as an improper fraction, and how to change one form into the other, then check what they know.
Students will be able to…
One and a half pizzas is more than a whole, but less than two. How can you write an amount greater than one whole, and why are there two ways to do it?
Project this and answer each question about mixed numbers and improper fractions — read the explanation after each one.
Tap any phase to open the teacher moves and student actions.
Three friends share pizzas and end up with one whole pizza and a half left over. How can you write an amount that is more than one whole as a single number?
Students answer questions about mixed numbers and improper fractions.
Students convert between the two forms.
Students draw both forms.
Students reflect on the two forms.
Aligned to the Common Core State Standards for Mathematics.
Understand a fraction a/b with a greater than 1 as a sum of unit fractions 1/b, including writing mixed numbers.
Add and subtract mixed numbers with like denominators, including by converting to improper fractions.
Understand a fraction 1/b as one part when a whole is partitioned into b equal parts.
Reason abstractly and quantitatively.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students draw 2 and 1/4 as shaded wholes, count every quarter piece, and write the total as an improper fraction, so the two forms connect to one picture. A printable mixed-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.