Arrays
"
Each class has 3 total lunch tables.
What is the total area of 1 class's lunch tables?
20 x 3= 60 sq ft.
if wrong -10
What is the total area of the new project room?
21+30+ 60= 111 sq meters
if wrong -10
Which playground plan would you want?
Why?
Plan A, it's 18 sq meters bigger than Plan B.
102-84= 18m2
The answer in:
addition
subtraction
multiplication
division
sum
difference
product
quotient
Skip count by 6s:
6, 12,......................................60
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
*Do before "Arrays 300"
The lunch table is 2 ft by 10 ft.
Draw and label 1 lunch table.
Find the total area of 1 lunch table.
2 x 10 = 20 sq ft.
if wrong - all
*Do before "Distributive Property 300"
The school is building a new project room.
Find the area of A, B, and C.
*Teacher: Draw image from math book p.206 (or p212) #4.
*Students, you need to use the lengths given to figure out the other side lengths, then find the area of each rectangle.
A: 3x7= 21 sq m if wrong -5
B: 3x10= 30 sq m if wrong -5
C: 6x10= 60 sq m if wrong -5
The students are designing the playground.
Plan B has these sections:
3m x 3m
9m x 3m
12m x 4m
What is the total area of Plan B?
3m x 3m= 9m2
9m x 3m= 27m2
12m x 4m=48m2
9 + 27 + 48= 84 sq meters
Explain the Distributive Property of Multiplication in words.
break apart
How does knowing multiplication help you figure out area?
You can find the area of rectangles. The rectangles are like arrays in multiplication.
The 3rd grade teachers have rectangular rugs that each take up 36 square feet.
Draw 3 arrays that could represent the rugs.
Label each side length.
Write the multiplication number sentence & solve.
1x36=36 ft2 36x1=36 ft2
2x18=36 ft2 18x2=36 ft2
3x12=36 ft2 12x3=36 ft2
4x9=36 ft2 9x4=36 ft2
6x6=36 ft2
Ms. Navratil displays student work on a 7ft x 5 ft bulletin board.
Mrs. Atkinson displays student work on 5ft x 4ft and 5ft x 3ft boards.
Who has a larger area to display work?
Ms. N. 7x5= 35 ft2
Mrs. A. 5x4= 20 ft2 5x3= 15 ft2
Mrs. A. 20+15= 35 ft2
Ms. N. and Mrs. A. have the same amount of area
The students are designing the playground.
Plan A has these sections:
12m x 3m
6m x 3m
12m x 4m
What is the total area of Plan A?
12m x 3m= 36m2
6m x 3m= 18m2
12m x 4m=48m2
36 + 18 + 48= 102 sq meters
The amount of space something takes up?
area
How do you label area? Why?
units squared
It's the whole space (grid, rug), not just a line (edge).
what is 10000000000000000000x16+80
you dumb doing this
qwerty is in charge on this one
bannana dude
copy this and make your own Jepardy
good boy
how do you spell my name
Eli
Pick one
1 5 9
2 6 10
3 7 11
4 8 12
9
if wrong lose all plus lose turn