View
213
Download
0
Category
Preview:
Citation preview
In this lesson you will interpret the meaning of division by matching equations to real
world examples.
Multiplication is adding equal groups to find an unknown product.
Eli had five drawers each drawer had ten shirts. How many shirts does Eli have?
Multiplication is adding equal groups to find an unknown product.
Multiplication is adding equal groups to find an unknown product.
Number of Groups
Number of Items in Group
Total Number of
Items
?
Division is separating to find an unknown factor.
Division is separating to find an unknown factor.
Eli had 50 shirts. He has five drawers to put them in. How many shirts are in each drawer?
Division is separating to find an unknown factor.
Eli had 50 shirts. He has five drawers to put them in. How many shirts are in each drawer?
Number of Groups
Number of Items in Group
Total Number of
Items
?
Division is separating to find an unknown factor.Eli had 50 shirts. He puts ten shirts in each drawer. How many drawers did he put shirts in?
Division is separating to find an unknown factor.Eli had 50 shirts. He puts ten shirts in each drawer. How many drawers did he put shirts in?
Number of Groups
Number of Items in Group
Total Number of
Items
?
Your mom is setting the table for a dinner party. She hands you a stack of 48 plates. She tells you that each place at the table needs three plates. How many places are set at the table?
Your mom is setting the table for a dinner party. She hands you a stack of 48 plates. She tells you that each place at the table needs three plates. How many places are set at the table?
Number of Groups
Number of Items in Group
Total Number of
Items
48 ÷ 3 =
Your mom is setting the table for a dinner party. She hands you a stack of 48 plates. She tells you that each place at the table needs three plates. How many places are set at the table?
Number of Groups
Number of Items in Group
Total Number of
Items
48 ÷ 3 =
72 ÷ 9 = ?Which scenario below does this equation represent?
a) Lily’s book is 72 pages long. She read 9 pages. How many more pages does she have to read?
b) Lily’s book is 72 pages long. She reads nine pages a day. How many days will it take her to finish the book?
c) Lily reads 72 pages a day. Lily reads for 9 days. How many pages has she read after 9 days?
d) Lily has read 72 pages of her book. She reads nine more pages. Now how many pages has she read?
72 ÷ 9 = ?Which scenario below does this equation represent?
a) Lily’s book is 72 pages long. She read 9 pages. How many more pages does she have to read?
b) Lily’s book is 72 pages long. She reads nine pages a day. How many days will it take her to finish the book?
c) Lily reads 72 pages a day. Lily reads for 9 days. How many pages has she read after 9 days?
d) Lily has read 72 pages of her book. She reads nine more pages. Now how many pages has she read?
Division is finding an unknown factor.
The factor can represent the unknown number of groups, or the unknown group size.
72 ÷ 9 = ?Which scenario below does this equation represent?
a) Lily’s book is 72 pages long. She read 9 pages. How many more pages does she have to read?
b) Lily’s book is 72 pages long. She reads nine pages a day. How many days will it take her to finish the book?
c) Lily reads 72 pages a day. Lily reads for 9 days. How many pages has she read after 9 days?
d) Lily has read 72 pages of her book. She reads nine more pages. Now how many pages has she read?
72 ÷ 9 = ?Which scenario below does this equation represent?
a) Lily’s book is 72 pages long. She read 9 pages. How many more pages does she have to read?
b) Lily’s book is 72 pages long. She reads nine pages a day. How many days will it take her to finish the book?
c) Lily reads 72 pages a day. Lily reads for 9 days. How many pages has she read after 9 days?
d) Lily has read 72 pages of her book. She reads nine more pages. Now how many pages has she read?
You now know how to interpret the meaning of division by matching equations to real
world examples.
Recommended