Number Lines And Mixed Numbers Worksheet - Grade 4, Lesson 14
ADVERTISEMENT
1
2
3
4
5
6
7
8Grade 4 Lesson 14: Number Lines and Mixed Numbers
Purpose:
To form the beginning of a number line with fractions
Materials:
,
Fraction Bars
Transparent bars, Transparent Number Line (Transparency Kit),
Master "Fraction Number Line", pencils, markers
TEACHER MODELING/STUDENT COMMUNICATION
Fraction
Activity 1 Forming a number line from 0 to 1 with fractions
Bars and
pencils
1. Each group will need a deck of bars and each student will need a pencil and a Master
"Fraction Number Line".
Masters
Fraction
What do you notice about your number line?
(It has the numbers 0, 1, and 2. It
Number Line
has 12 spaces between 0 and 1 and 12 spaces between 1 and 2.)
Which color of your bars is divided into 12 equal parts?
(orange bars)
Transp
You can think of this line between 0 and 1 as a very skinny bar with 12 equal
Number
parts. Instead of shading the parts, we will write fractions beneath the marks on
Line
the line.
To illustrate this, place your transparent Fraction Number Line on the overhead and,
Transp
above this, place a transparent orange bar with 2 shaded parts.
bars
What fraction should we write below the line for this bar and where should it be
written?
(2/12 should be placed beneath the mark at the end of the shaded part of
the bar.)
Write this fraction on your number line.
Select a different orange bar that is not a zero bar or a whole bar and place it on
your line between 0 and 1. Write the fraction on your line at the end of the
shaded part of your bar.
Ask a volunteer to describe the bar they selected. Place
a transparent copy of their bar on the overhead and write its fraction on the line.
Ask students to write all the fractions for the remaining marks between 0 and 1 on their
number line. Then place the transparent orange whole bar below the line and between 0
and 1 and ask:
Why is the number 1 written for the whole bar?
(Because the fraction for a
whole bar equals one.) Leave this whole bar below the number line for the next
activity.
Activity 2 Extending the line to the length of two whole bars
same
materials
Place the transparent orange 2/12 bar between 1 and 2 (see next page) and ask:
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education