Transcript Chapter 2 Numbers and Money

Mrs. Dover’s 4 th Grade
 The Mississippi River is 2,348 miles long. The Nile
River is 4,160 miles long. The Amazon River is 4,000
miles long. Order these rivers from shortest to longest
 Define penny, nickel, dime, quarter and dollar bill.
 How much is each unit of currency worth, give an
example of something you could buy with each.
 When counting up to find change you should start
with the least valuable and count up so you don’t get to
much change. Ex. If something cost $2.45 and you give
the cashier $3.00 you would count back like this:
Nickle = 2.50
Quarter = 2.75
Quarter = 3.00
1 nickle + 2 quarters = 51 cents
 What change would you give,
 Teacher led station: Foldable
using the least number of
coins and bills, for a purchase
of $2.64 that is paid for with a
$5.oo bill. (As a Class)
 Jess buys a notepad for $1.39.
He gives Myra a $5.00 bill.
How much change should
Myra give jess. (With a
partner)
 If lunch cost $ 4.19 and you
give the cashier a $10 bill how
much change should you
receive? (Independent)
 Student led station: Enrich
 Smart board station:
 Independent work station:
1.2 P/LPS
 Find the amount of change where the first number is
the price and the second number is the amount given.
1.
$1.87 ; $2.00
2.
$3.24 ; $5.00
3.
$6.28 ; $10.00
4.
$16.98 ; $20.00
 What does less than (<) and more than (>) mean?
 You can compare and order money amounts the same
way you did with whole numbers.
 Always line up the decimals, then compare the
amounts. (P.24)
 Order the following from
least to greatest.
$0.59, $1.59, $0.56
$45.88, $51.72, $33.65
 Order the following from
greatest to least.
$1.59, $0.55, $0.56
$111.24, $104.62, $95.50
Teacher led station: 2.2 RT / E
Student led station: Count your change game (P.23)
Smart board:
Independent work station: P.24 1-31
 Order from the least to greatest:
1.
$1.67 ; $1.64 ; $1.72
2.
$35.65 ; $34.99 ; $34.78
3.
$89.79 ; $89.99 ; $89.95
4. $245.30 ; $246.00 ; $246.03
 Vocabulary Word:
Round: to find the nearest
value of a number based on a
given place value.
 To round to a specific place
value you have to look at the
number to the right of that
place value.
 Ex. 124 to the nearest
hundred
 124 underline the place value
you are rounding.
 Now look at the number to
the right of that place 124.
 If that number is 4 or
smaller the number in the
hundreds place stays the
same. If the number is 5 or
larger the number in the
hundreds place goes up.
Key Points
 Always underline the
place value you are
rounding to.
 Go to the number to
the right of that place
value.
 If that number is 5 or
greater the underline
number goes up.
 Let’s Try:
 Round 674 to the
nearest hundred.
 489,039 to the nearest
ten thousand.
 $7.13 to the nearest 10
cents.
 $13.21 to the nearest
dollar.
Teacher led station: 2.3 RT
Student led station: Play the game from yesterday
Smart board station:
Independent work station:
 Round to the nearest
thousand.
7,489
2. 2,813
1.
 Round to the nearest
hundred thousand.
1.
2.
390,004
629,766
 A table is an organized grouping of information in
rows and columns that makes the information easier
to understand.
 P.30 (discuss)
 P.31 # 6
 Try # 10 P.31
Teacher led station: 2.4 P
Student led station: Using
the roll paper write your
groups own question.
Smart board station:
Independent work station:
LPS
 As a class review p.32
 Independently do p.33
Chapter 2 Test Tomorrow!!