Math Lesson 5.5 I can look at different shapes, tell what fraction they are divided into, and write the fraction as a number. Partition a whole into equal parts and define the equal parts to identify the unit fraction numerically.

Skip Count by 8s … Skip Count! Starting when I say “GO,” skip count by 8s as high as you can in 90 seconds. 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120

Write the fractional unit What fractional unit is the shape divided into? Thirds What fraction of the shape is shaded?

Write the fractional unit What fractional unit is the shape divided into? Fourths What fraction of the shape is shaded?

Write the fractional unit What fractional unit is the shape divided into? Fifths What fraction of the shape is shaded?

Write the fractional unit What fractional unit is the shape divided into? Sixths What fraction of the shape is shaded?

Write the fractional unit What fractional unit is the shape divided into? Tenths What fraction of the shape is shaded?

Write the fractional unit What fractional unit is the shape divided into? Eighths What fraction of the shape is shaded?

Problem of the Day Mrs. Lambrectsen’s class! Mrs. Lambrectsen cuts a 6-meter rope into equal size pieces to make her class jump ropes. Mrs. Richardson cuts a 5-meter rope into three equal size pieces to make jump ropes for her class. Which class has longer jump ropes? Mrs. Lambrectsen’s class!

Concept Development 1 half Whisper the name of this shape. Circle Watch as I partition the whole circle into equal parts. What is the name of each equal part? 1 half

Concept Development 1 half is the unit form. This is how we write it numerically (with numbers): ½. ½ is called the unit fraction.

⅓ Let’s ANALYZE shapes 1 third This shape is divided into equal parts. What is the name of each unit? 1 third Write the unit fraction for the shaded part on your white board and hold it up. ⅓

½ Let’s ANALYZE shapes 1 half This shape is divided into equal parts. What is the name of each unit? 1 half Write the unit fraction for the shaded part on your white board and hold it up. ½

9/10 Let’s ANALYZE shapes 1 tenth This shape is divided into equal parts. What is the name of each unit? 1 tenth Write the unit fraction for the unshaded part on your white board and hold it up. 9/10

⅚ Let’s ANALYZE shapes 1 sixth This shape is divided into equal parts. What is the name of each unit? 1 sixth Write the unit fraction for the shaded part on your white board and hold it up. ⅚

⅘ Let’s ANALYZE shapes 1 fifth This shape is divided into equal parts. What is the name of each unit? 1 fifth Write the unit fraction for the shaded part on your white board and hold it up. ⅘

⅕ Let’s ANALYZE shapes 1 fifth This shape is divided into equal parts. What is the name of each unit? 1 fifth Write the unit fraction for the unshaded part on your white board and hold it up. ⅕

No! Let’s ANALYZE shapes No! Discuss with your partner: Does this shape have equal parts? No! Turn and talk: If the parts are not equal, can we call them fourths? No!

Problem Set