It is necessary for fourth and fifth grade students to be able to convert between fractions,
decimals, and percents. Much of this learning must be done through repetition and practice once
students begin to grasp the concept. This lesson provides a way for students to practice this
concept.

Objectives

Upon completion of this lesson, students will:

practice naming and converting between fractions, decimals, and percents.

Standards Addressed:

Grade 10

Estimation and Computation

The student accurately solves problems (including real-world situations).

Numeration

The student demonstrates conceptual understanding of real numbers.

Grade 3

Numeration

The student demonstrates conceptual understanding of simple fractions with denominators 2, 3, 4, or 10.

Grade 4

Numeration

The student demonstrates conceptual understanding of fractions with denominators 2 through 12.

Grade 5

Numeration

The student demonstrates conceptual understanding of positive fractions with denominators 1 through 12 and 100 with proper and mixed numbers and benchmark percents (10%, 25%, 50%, 75%, 100%).

Grade 6

Numeration

The student demonstrates conceptual understanding of fractions (proper or mixed numbers), decimals, percents (whole number), or integers.

The student demonstrates conceptual understanding of fractions, mixed numbers, or percents.

Grade 7

Numeration

The student demonstrates conceptual understanding of rational numbers (fractions, decimals, percents, or integers).

The student demonstrates conceptual understanding of positive fractions, decimals, or percents.

Grade 8

Numeration

The student demonstrates conceptual understanding of real numbers.

The student demonstrates conceptual understanding of rational numbers (fractions, decimals, or percents including integers).

Grade 9

Estimation and Computation

The student accurately solves problems (including real-world situations).

Numeration

The student demonstrates conceptual understanding of real numbers.

Fourth Grade

Number and Operations-Fractions

Extend understanding of fraction equivalence and ordering.

Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers.

Sixth Grade

The Number System

Apply and extend previous understandings of multiplication and division to divide fractions by fractions.

Third Grade

Number and Operations-Fractions

Develop understanding of fractions as numbers.

Grades 3-5

Numbers and Operations

Compute fluently and make reasonable estimates

Grades 6-8

Numbers and Operations

Compute fluently and make reasonable estimates

Grade 6

Number and Operations, Measurement, Geometry, Data Analysis and Probability, Algebra

COMPETENCY GOAL 1: The learner will understand and compute with rational numbers.

Grade 7

Number and Operations, Measurement, Geometry, Data Analysis and Probability, Algebra

COMPETENCY GOAL 1: The learner will understand and compute with rational numbers.

Student Prerequisites

Arithmetic: Student must be able to:

add, subtract, multiply, and divide whole numbers.

Technological: Students must be able to:

perform basic mouse manipulations such as point, click and drag.

Teacher Preparation

access to a browser

pencil and paper

Key Terms

decimal

Short for the term "decimal fraction", a decimal is another way to represent fractional numbers. The decimal uses place value to express the value of a number as opposed to a fraction that uses a numerator and denominator.

decimal number

A fraction where the denominator is a power of ten and is therefore expressed using a decimal point. For example: 0.37 is the decimal equivalent of 37/100

fraction

A rational number of the form a/b where a is called the numerator and b is called the denominator

percent

A ratio that compares a number to one hundred. The symbol for percent is %

Lesson Outline

Focus and Review

Get the students to think about fractions by asking them to think of things they needed to share
by splitting a single object into parts. Possibly give the example of a pizza or a piece of paper.

Objectives

Today, class, we are going to use the computers to help practice our skills working with
fractions, decimals, and percents.

Teacher Input

Give students several examples of fractions, decimals and percents used in the real world.
Examples such as sharing a pizza, a ruler, measures on bottles or cans for decimals, or food
labels for percents. Discuss with the students that these are all representations of the same
thing. A fraction can be expressed as a decimal or as a percent and vice versa.

Guided Practice

Give the students time so they may try to solve the problems on the
worksheet by themselves. Once the students have had enough time to solve the problems, have them check
their fraction to decimal conversion answers using the
Fraction Converter applet.

Independent Practice

Once the students have opened the
Pie Chart applet, tell them to adjust the applet settings so that the pie chart only has two sections.
After all of the settings are correctly adjusted, have the students try to replicate their answers
from the worksheet using the two sections. It may be helpful to remind your students the sum of
the two sections must equal 100. For example:

You would have the students enter 75% as the percentage for one portion of the circle and 25% for
the other. Then the students would compare the circle they colored with the one colored by the Pie
chart applet to make sure they look similar. Once the students have completed the worksheet, they
can choose partners and play the Fraction Four applet. Be sure you tell them to set the "problem
type" in the
Fraction Four applet to "fractions, decimals, and percents".

Closure

Have students come to the board and share one of their responses to the
worksheet.