| Category | Format | Size |
|---|---|---|
| Beijing Normal University eighth grade first volume mathematics | pptx | 6 MB |
"Understanding Irrational Numbers" Real Numbers PPT Courseware 3
Description
"Understanding Irrational Numbers" Real Numbers PPT Courseware 3
learning target
1. Understand the concept of irrational numbers and be able to judge whether a number is rational or irrational.
2. Be able to represent some simple irrational numbers on the number line.
In fact, any rational number can be written as a finite decimal or an infinite recurring decimal.
In turn, any finite decimal or infinitely repeating decimal is also a rational number.
Definition of irrational numbers: Infinite non-repeating decimals are called irrational numbers.
0.101 001 000 1…(two 1s followed by one more 0)
-168.323 223 222 3… (there is one more 2 between the two 3s)
Will the square of side length a be exactly equal to 2 when counted to a certain digit? Why?
Is it possible that a is a finite decimal? What kind of number will it be?
In fact, a=1.414 213 56…,
It is an infinite non-repeating decimal!
regular method
Characteristics of irrational numbers:
1. Pi and some numbers whose final result contains π.
2. The square root can open endless numbers.
3． There are certain rules, but there are infinite decimals that do not cycle.
Keywords: real number courseware, understanding irrational numbers courseware, Beijing Normal University edition eighth grade mathematics volume PPT courseware, eighth grade mathematics slide courseware download, real number PPT courseware download, understanding irrational numbers PPT courseware download, .ppt format
For more information about the PPT courseware "Real Numbers Understanding Irrational Numbers", please click the Real Numbers ppt Understanding Irrational Numbers ppt tag.
"Understanding Irrational Numbers" Real Numbers PPT Courseware 2:
"Understanding Irrational Numbers" Real Numbers PPT Courseware 2 When a fraction is converted into a decimal, how many forms does the final decimal take? Invite students to conduct activities in study groups: one student cites any fraction, and the other student converts this fraction into a decimal. And summarizes the form of this decimal? Conclusion:...
"Understanding Irrational Numbers" Real Number PPT Courseware:
"Understanding Irrational Numbers" Real Number PPT Courseware Think about it 1. Is the square of an integer always an integer? 2. Is the square of a fraction always a fraction? Recall that rational numbers include: integers and fractions. If a number is neither an integer nor a fraction, then the number is not...
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Update Time: 2024-07-12
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