What is the simplest way of defining the phrase "decimal fractions?" A simple definition for my 4th grade class. Thanks alot.
Does this help?
http://en.wikipedia.org/wiki/Decimal
I did see this definition but I was looking for something that gave a better explanation.
I felt the same way too Susan.. I don't think it gave me the definition I was looking for.
If I recall we use to define a "decimal fraction" as a fraction where the denominator is a power of 10
e.g .45 = 45/100 = 45/10^2
e.g. 0.00567 = 567/100000 = 567/10^5
What's a decimal fraction
i need help............... explaning decimals
To define the phrase "decimal fractions" in a simple way for a 4th-grade class, you can explain it as follows:
"Decimal fractions are a special way we use numbers to show parts or portions of a whole. They help us describe amounts that are less than a whole number. When we write numbers with decimal fractions, we separate the whole number part from the fractional part using a dot called a decimal point. The decimal point helps us to understand where the fraction part begins. For example, in the number 3.14, the whole number part is 3, and the decimal fraction part is 0.14."
To explain how to get the answer, you can use hands-on objects or visuals:
1. Start by showing a whole object, such as a pizza or a chocolate bar, to represent a complete unit.
2. Next, divide the whole object into smaller parts. For example, cutting the pizza into slices or breaking the chocolate bar into pieces.
3. Let the students count the smaller parts. Explain that each part represents a fractional amount of the whole.
4. Write down a simple example, like 2.5, and explain that the number before the decimal point (2) represents the whole number part, and the number after the decimal point (5) represents the decimal fraction part (also called the decimal portion).
5. Emphasize that decimal fractions are useful for expressing parts of a whole that are not whole numbers, like the example 2.5 represents 2 whole units and 5 tenths of another unit.
By using real-life examples and visual aids, you can make it easier for your 4th-grade class to understand and grasp the concept of decimal fractions.