1i denseness of numbers lesson 2
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Transcript of 1i denseness of numbers lesson 2
1i Develop a logical argument to demonstrate the ‘denseness’ of
rationalnumbers. (DOK 3)
By: Deia Sanders(Lesson 2)
Let’s review from yesterday!!
What does
“denseness”
mean? What is a “rational” number?
Let’s review from yesterday!!
Name a number that is between2
13 and
3
14
Today we will work with decimals!
Steps
1.Write the numbers vertically(A chart is helpful to line up
decimals)
2. Add another column of zeros
3. Name the numbers between
Example
Name a number that is between 2.4 and 2.39.
1. Write the numbers vertically
(A chart is helpful to line up decimals)
2. Add another column of zeros
3. Name the numbers between
1. 2 4.. 32 9
2. 2 4.. 32 9 0
00
Name the numbers that are between 390 and 400. Remember to use the form of 2.____.
3.
(Any number that can be located between the two points will satisfy the condition.)
Your question may be written like this…
Name a value for x that makes the sentence true. 3.2 < x < 3.28
This sentence is read “3.2 is less than x, and x is less than 3.28.”
1. Write the numbers vertically
(A chart is helpful to line up decimals)
2. Add another column of zeros
3. Name the numbers between
Try this on your own…
Name a number that is between 2.7 and 2.66.
1. Write the numbers vertically
(A chart is helpful to line up decimals)
2. Add another column of zeros
3. Name the numbers between
Show ALL the
steps!!!
How would you handle this?
Name a number that is between 4.5 and
8
54
Convert both numbers to the same form. Decimal form is easiest.
1. Write the numbers vertically
(A chart is helpful to line up decimals)
2. Add another column of zeros
3. Name the numbers between
Pick 2!!!
2.562.72.6
3
22
4
32
8
52
Use Handout
#1 to mark
on number
line.
Assignment:
Handout #2(page 56)
Enrichment: Create a drawing explaining density of numbers using only pictures and numbers (no words).