Fractions: Parts, Wholes, and Numbers

Grade 3-4 Mathematics Understanding Numerators and Denominators Representing Fractions on Number Lines

What is a Fraction?

A fraction shows parts of a whole The whole is divided into equal parts Fractions help us describe amounts less than one whole We see fractions everywhere in daily life

Parts of a Fraction

Numerator: The TOP number Shows how many parts we have Denominator: The BOTTOM number Shows how many equal parts in the whole

Let's Model Unit Fractions!

Take your shape worksheet Shade ONE part to make a unit fraction Tell your partner: How many total parts? Tell your partner: How many parts shaded?

Fractions Greater Than One Part

Some fractions have numerators greater than 1 Example: 3/4 means 3 parts out of 4 total parts We can think of it as 1/4 + 1/4 + 1/4 These are still proper fractions when less than one whole

Fractions on the Number Line

Number Line Challenge!

Use your dry-erase number line I'll show you a fraction card Mark the fraction on your number line Compare with your partner and explain your thinking

Fraction Reflection

Why must fractions have EQUAL parts? How does a number line help us understand fractions? Can you think of fractions you use at home?