Parts of a whole: A fraction represents a part of a complete object that has been divided into equal parts
Note: The denominator tells how many equal parts the whole is divided into, and the numerator tells how many parts are taken.
- Identify the total number of equal parts (denominator)
- Identify how many parts are taken (numerator)
- Write the fraction as numerator/denominator
- Read the fraction in words
The pizza is cut into 8 equal pieces, so the denominator is 8
You ate 3 pieces, so the numerator is 3
The fraction is 3/8 (read as "three-eighths")
3 out of 8 pieces eaten = 3/8 of the pizza
You ate 3/8 of the pizza (three-eighths)
Denominator: 8 (total equal parts)
Numerator: 3 (parts taken)
• Fraction notation: Numerator/denominator (top number/bottom number)
• Equal parts: The whole must be divided into equal pieces
• Part-whole relationship: Fraction shows part taken from total parts
• Practice Tip: Use real objects like pizza, cake, or cookies to visualize fractions
- Apple cut into 2 pieces, eat 1 → 1/2 (one-half)
- Chocolate bar with 8 squares, eat 3 → 3/8 (three-eighths)
- Cookie cut into 4 pieces, eat 2 → 2/4 (two-fourths)
- Think of the denominator as "how many equal parts" (bottom number)
- Think of the numerator as "how many parts taken" (top number)
- Equal parts mean all pieces are the same size
Q: What if the pieces aren't equal?
A: Fractions require equal parts. Unequal pieces cannot represent fractions.
Q: How do I know which number goes on top?
A: The top number (numerator) shows how many parts you have or take.
Equal shares: Dividing a whole into equal parts so each person gets the same amount
Note: Equal sharing is the foundation for understanding fractions and division.
- Identify the total number of people sharing
- Determine how many equal parts to create
- Each person gets 1 part out of the total parts
- Write the fraction as 1/total parts
There are 4 friends sharing the pie
To share equally, the pie must be cut into 4 equal parts
Each friend gets 1 part out of 4 total parts
Each friend gets 1/4 of the pie (one-fourth)
Each friend gets 1/4 of the pie (one-fourth)
Total friends: 4, Each gets: 1/4, Together: 4/4 = 1 whole pie
• Equal sharing: Divide the whole into as many equal parts as there are people
• Individual share: Each person gets 1 part out of the total number of parts
• Fraction notation: 1/number of people sharing
• Practice Tip: Use real scenarios like sharing food to understand equal shares
- 2 people share 1 cookie → each gets 1/2
- 3 children share 1 chocolate bar → each gets 1/3
- 5 friends share 1 sandwich → each gets 1/5
- Equal shares mean everyone gets the same amount
- More people = smaller shares (1/10 is smaller than 1/2)
- When all shares are added together, you get the whole (1)
Q: What if there are leftover pieces?
A: For equal shares, the whole must be divided exactly among all people.
Q: Can each person get more than one piece?
A: Yes, but each person still gets the same number of pieces.
Fraction notation: The symbolic way of writing fractions with a numerator (top number) and denominator (bottom number) separated by a line
Note: The numerator shows how many parts are taken, the denominator shows how many equal parts make the whole.
- Identify how many parts are taken (numerator)
- Identify how many total equal parts (denominator)
- Write the fraction as numerator/denominator
- Read the fraction in words
"Three" parts are taken → Numerator = 3
"Five" total equal parts → Denominator = 5
Put numerator over denominator: 3/5
3/5 is read as "three-fifths"
The fraction is 3/5 (three-fifths)
Numerator: 3 (parts taken)
Denominator: 5 (total equal parts)
• Numerator: Top number showing how many parts are taken
• Denominator: Bottom number showing total equal parts
• Fraction line: Separates numerator and denominator
• Reading: Say numerator first, then denominator (3/4 = "three-fourths")
- Two out of seven parts → 2/7 (two-sevenths)
- Five out of eight parts → 5/8 (five-eighths)
- One out of ten parts → 1/10 (one-tenth)
- Numerator = Number of parts you have (think "North" = top)
- Denominator = Down at the bottom, total parts
- Remember: "Out of" means denominator (total parts)
Q: Can the numerator be larger than the denominator?
A: For now, we focus on proper fractions where numerator is smaller than denominator.
Q: What if the numerator equals the denominator?
A: That equals 1 whole (like 4/4 = 1 whole).
Visual representation: Showing fractions using pictures, diagrams, or models to help understand the concept
Note: Visual models help children see fractions as parts of a whole.
- Draw the whole shape (rectangle, circle, etc.)
- Divide it into the required number of equal parts
- Shade the specified number of parts
- Count shaded parts and total parts to write the fraction
Draw a rectangle to represent the whole
Divide the rectangle into 4 equal parts (draw 3 vertical lines)
Shade 3 out of the 4 parts
Shaded parts: 3, Total parts: 4 → Fraction: 3/4
The shaded part represents 3/4 of the rectangle (three-fourths)
Shaded parts: 3, Total parts: 4, Fraction: 3/4
• Equal parts: All divisions must be equal in size
• Visual counting: Count shaded parts for numerator
• Total parts: Count all parts for denominator
• Practice Tip: Use grid paper to ensure equal divisions
- Circle divided into 2 parts, 1 shaded → 1/2
- Square divided into 8 parts, 3 shaded → 3/8
- Rectangle divided into 6 parts, 5 shaded → 5/6
- Make sure all parts are exactly the same size
- Count shaded parts first, then total parts
- Use a ruler for straight dividing lines
Q: What if the parts aren't equal?
A: The model won't represent a proper fraction. All parts must be equal.
Q: Can I use different shapes?
A: Yes! Circles, squares, rectangles, and other shapes all work for fraction models.
Halves and quarters: Common fractions representing one of two equal parts (1/2) and one of four equal parts (1/4)
Note: These are fundamental fractions that appear frequently in daily life.
- Identify what "half" means (1 out of 2 equal parts)
- Identify what "quarter" means (1 out of 4 equal parts)
- Create visual models showing these fractions
- Write the fraction notation for each
One half = 1 out of 2 equal parts → Fraction: 1/2
One quarter = 1 out of 4 equal parts → Fraction: 1/4
Half: Circle divided into 2 parts, 1 shaded
Quarter: Circle divided into 4 parts, 1 shaded
1/2 is larger than 1/4 (half a pizza is more than a quarter)
One half = 1/2 (one out of two equal parts)
One quarter = 1/4 (one out of four equal parts)
1/2 is larger than 1/4
• Halves: Dividing into 2 equal parts (1/2)
• Quarters: Dividing into 4 equal parts (1/4)
• Comparison: 1/2 > 1/4 (larger denominator means smaller pieces)
• Practice Tip: Use real examples like cutting sandwiches or pizzas
- Two halves = 2/2 = 1 whole
- Four quarters = 4/4 = 1 whole
- Two quarters = 2/4 = 1/2
- Half means splitting into 2 equal parts
- Quarter means splitting into 4 equal parts
- More parts = smaller pieces (1/8 is smaller than 1/4)
Q: How many quarters make a half?
A: Two quarters (2/4) equal one half (1/2).
Q: How many halves make a whole?
A: Two halves (2/2) equal one whole (1).