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Printable Version
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Title - Fraction Blocks
By - Jamie Rettke
Subject - Math
Grade Level - 3-4
Topic: Mathematics - Introduction to Fractions
State Standards:
·
State
Goal 6: Demonstrate and apply a knowledge and sense of numbers, including numeration
and operations (addition, subtraction, multiplication, division) patterns, ratios,
and proportions.
·
Learning
Standard 6.B: Investigate, represent, and solve problems using number facts,
operations, and their properties, algorithms, and relationships.
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6.B.2:
Solve one- and two-step problems involving whole numbers, fractions, and decimals.
Objectives: When asked, the
students will be able to:
1.
Identify
the numerator and denominator of various fractions
2.
Create
visual representations of fractions using manipulative blocks
Materials:
Manipulative blocks or chips of at least
two colors
Procedures:
1. Draw
a picture of a square on the board. Divide this shape into four equal parts,
shading in 1 section. Ask the students how many parts are shaded (1/4). Explain
that this is a fraction because 1 of 4 equal parts is shaded. Stress to the
students that the "parts" must be equal. Do a few more examples using different
shapes.
2.
Demonstrate
how to write a fraction and identify the numerator and the denominator.
3.
Divide the class into groups of two. Explain to the students
that each pair will be given a set of colored manipulative blocks. (The blocks
used in this lesson where able to connect forming a line.) It is the students'
job to try to create visual representations of each fraction in the book.
4.
Pass out the blocks to each group. Allow time for students to
complete each set of fractions. An example would be: ¾ - the student would
stack 3 red blocks and 1 blue. Therefore 3 out of 4 blocks are red = ¾. The
students should complete each fraction in this way.
5.
Once adequate time has been allowed the class will come together
as a group. At this time, call out various fractions to see which team can
visually represent the fraction first.
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