Ready for today’s lesson? 4th grade math.
“Mr. Torees took his students to the dolphin show. Each row in the stadium had 11 seats. One adult sat at each end of a row, and each group of 4 students was seated between 2 adults. Mr. Torres sat by himself. How many adults were there?
“Mr. Torees took his students to the dolphin show. Each row in the stadium had 11 seats. One adult sat at each end of a row, and each group of 4 students was seated between 2 adults. Mr. Torres sat by himself. How many adults were there?
From the graph:
Mr. Torres has 24 students.
Ms. Bird has 30 students.
Mrs. Allen has 36 students.
Mr. Torres has 24 students.
Ms. Bird has 30 students.
Mrs. Allen has 36 students.
Mr. Torres has 24 students. If there are 4 students in rach row, he will need 6 rows.
4x6=24
Each row has 2 adults sitting on each end.
4x6=24
Each row has 2 adults sitting on each end.
The kids are trying so hard to figure this out. Meanwhile I’m like... 
The answer is 10.
12 - 2 = 10.
10 adults.
All those words just to get to 12-2 = 10😩😩😩😩😩😩😩😩😩😩😩
12 - 2 = 10.
10 adults.
All those words just to get to 12-2 = 10😩😩😩😩😩😩😩😩😩😩😩
Okay this is easier.
“There are 8 rows of 22 chairs set up for an awards ceremony at school. In each row, the 2 chairs on each end are reserved for students receiving awards. The rest of the chairs are for guests. How many chairs are for guests?”
“There are 8 rows of 22 chairs set up for an awards ceremony at school. In each row, the 2 chairs on each end are reserved for students receiving awards. The rest of the chairs are for guests. How many chairs are for guests?”
8 rows of 22
8x22 = 176
2 chairs on each end are reserved.
8x2 = 16
176-16 = 160
160 chairs are for guests.
8x22 = 176
2 chairs on each end are reserved.
8x2 = 16
176-16 = 160
160 chairs are for guests.
Okay 1 more.
“Brenda’s vegtable garden has 13 rows with 8 plants in each row. Brenda plans to plant peppers in the first 2 rows AND the last 2 rows of the garden. The rest of the rows will be tomatoes. How many tomato plants will Brenda plant?”
“Brenda’s vegtable garden has 13 rows with 8 plants in each row. Brenda plans to plant peppers in the first 2 rows AND the last 2 rows of the garden. The rest of the rows will be tomatoes. How many tomato plants will Brenda plant?”
13 rows with 8 plants in each row.
13 x 8 = 104
4 rows of pepper plants
4 x 8 = 32
104 - 32 = 72
Brenda will plant 72 tomato plants. And we know this is true cause 9 rows were left. And 9 x 8 is what?
72.
13 x 8 = 104
4 rows of pepper plants
4 x 8 = 32
104 - 32 = 72
Brenda will plant 72 tomato plants. And we know this is true cause 9 rows were left. And 9 x 8 is what?
72.
*correction* Um...2 chairs at the end of each row is 4, not 2.
8 x 4 = 32
176 - 32 = 144
Lord. I hope so.
8 x 4 = 32
176 - 32 = 144
Lord. I hope so.
Okay so we got this one wrong😭
Oh, no we didn’t. We orig said 160. But we corrected our mistake to 144. And that *is* correct.
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