Math Lesson 02.01.24

3rd Grade Mathematics

February 1, 2024

8

Do Now

1.

2.

3.

DIRECTIONS: Solve using partial product method or
standard algorithm

LO: SWBAT explain that the unit fraction 1/b represents the

quantity formed by one part of a whole that has been

partitioned into b equal parts.

DOL: SW explain that the unit fraction 1/b represents the

quantity formed by one part of a whole that has been
partitioned into b equal parts correctly on 4 out of 5

questions.

TEKS 3.3(C) explain that the unit fraction 1/b represents the quantity formed by one part of a whole that has been partitioned into b
equal parts where b is a non-zero whole number (S)

10

FACT OR FIB?

1. Does the circle represents 2 equal parts?

FIB

2. Does the rectangle represents 4 equal parts?

FACT

11

FACT OR FIB?

4. Does the rectangle represents 3 equal parts?

FIB

3. Does the rectangle represents 6 equal parts?

FACT

12

Lesson Vocabulary

Whole

Fraction

Numerator

Denominator

Unit Fraction

3

4

3

4

3

4

1

4

4

4

= 1

13

How many equal parts
does the circle have?

How many halves are in 1
whole?

14

How many equal parts
does the circle have?

How many fourths are in 1
whole?

15

How many equal parts
does the circle have?

How many eighths are in 1
whole?

(Fraction Circles) image by HISD Curriculum using 1,2,3 Math Fonts under license

Let's explore.

1

3

1

3

1

3

What fraction represents the first piece?

Let's explore.

1

6

1

6

1

6

1

6

1

6

1

6

What is the unit fraction?

Which shows a rectangle divided into units of ?

1

5

A.

B.

C.

D.

Let's solve.

A

B

Ashley drew rectangles A and B on a sheet of paper. Do

both rectangles represent a unit fraction of ? How do

you know?

1

4

Both rectangles _______ represent a unit fraction because
_________ .

Models A and B are shown.

Model A

Model B

Which statement is true?

A.

The shaded parts of Model A and Model B are different sizes, but each model

represents the same fraction of the whole.

B.

The shaded part of Model A is , because the parts are all equal in size.

C.

The shaded part of Model B cannot be written as the fraction , because

the parts are not all equal in size.

D.

The total number of equal parts in Model B is 8, so of Model B is

shaded.

1

7

1

8

1

8

(Fraction Circles) image by HISD Curriculum using 1,2,3 Math Fonts under license

Let's Practice

X
Y

Xavier drew circles X and Y on a sheet of paper. Do both

circles represent a unit fraction of ? How do you know?

1

2

Both circles _______ represent a unit fraction because
_________ .

(Fraction Circles) image by HISD Curriculum using 1,2,3 Math Fonts under license

Which shows a rectangle divided into units of ?

1

7

A.

B.

C.

D.

Three friends divided three cupcakes into pieces. The shaded parts of the models
represent the pieces that the friends ate.

Which statement describes the fraction of the cupcake that one of the friends ate?

A.

Carla ate of a cupcake, because she ate 1 piece and has 4 pieces left

over.

B.

Ben ate of a cupcake, because he ate the largest piece of his 3 pieces.

C.

Carla ate of a cupcake, because she ate 1 piece and had 4 equal size

pieces left over.

D.

Ron ate of a cupcake, because he ate 1 piece of his 3 equal size pieces.

Carla

Ben

Ron

1

3

4

1

1

3

1

4

(Fraction Circles) image by HISD Curriculum using 1,2,3 Math Fonts under license

SW explain that the unit fraction 1/b represents the quantity
formed by one part of a whole that has been partitioned into b
equal parts correctly on 4 out of 5 questions.