Mathematics
Grade 2
15 min
Simple fractions: what fraction does the shape show?
Simple fractions: what fraction does the shape show?
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Identify the total number of equal parts in a shape.
Identify the number of shaded parts in a shape.
Explain what a numerator and a denominator are.
Write a fraction to represent the shaded part of a shape.
Read simple fractions aloud, like 'one-half' or 'two-thirds'.
Recognize that fractions are parts of one whole.
Have you ever shared a yummy pizza 🍕 with a friend? Fractions help us make sure everyone gets a fair piece!
Today, we will learn about fractions. We will look at shapes and find out how to name their parts. This helps us talk about sharing things equally.
Real-World Applications
Sharing a chocolate bar 🍫 with your brother or sister.
Cutting a birthday cake 🎂 into equal slices for friends.
Folding a piece of pape...
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Key Concepts & Vocabulary
TermDefinitionExample
FractionA fraction is a number that shows a part of a whole.If you eat 1 slice of a 4-slice pizza, you ate a fraction of it!
WholeThe whole is the entire thing, like one complete cookie 🍪.A whole circle is the entire circle, with no pieces missing.
Equal PartsEqual parts are pieces that are all the exact same size.A square cut into 4 small, same-sized squares has equal parts.
NumeratorThe top number in a fraction. It tells how many parts you have. ⬆️In 1/4, the number 1 is the numerator. It means we have 1 part.
DenominatorThe bottom number in a fraction. It tells the total parts in the whole. ⬇️In 1/4, the number 4 is the denominator. It means the whole has 4 parts.
Fraction BarThe line that separates the numerator and the denominator.The line in the middle of 1/4...
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Core Formulas
Writing a Fraction
Fraction = \frac{\text{Shaded Parts}}{\text{Total Equal Parts}}
To write a fraction, put the number of shaded parts on top. Then, put the total number of equal parts on the bottom.
Reading a Fraction
\frac{\text{Numerator}}{\text{Denominator}}
The top number (numerator) tells you how many pieces to count. The bottom number (denominator) tells you the name of the pieces (like halves, thirds, or fourths).
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Challenging
A large square is divided into 16 smaller, equal squares (a 4x4 grid). 5 of the small squares are shaded. What fraction of the large square is shaded?
A.5/16
B.11/16
C.16/5
D.5/11
Challenging
A circle is divided into 12 equal parts, like a clock. 4 of the parts are shaded. What fraction of the circle is shaded?
A.12/4
B.8/12
C.4/8
D.4/12
Challenging
A rectangle is divided into 12 equal squares in a 3 by 4 grid. 7 of the squares are shaded. What fraction of the rectangle is NOT shaded?
A.7/12
B.12/5
C.7/5
D.5/12
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