21st Century Lessons

1
21st Century Lessons
Review Area Lesson
Mrs.Thompson
2
Warm Up
OBJECTIVE SWBAT select the correct dimensions
and calculate the area of diagrams and real-world
problems.
1) Why is the shape to the right a trapezoid?
It is a quadrilateral with 1 pair of parallel
sides.
2) Find the area of the trapezoid
 
Agenda
Formula
3
Warm Up
OBJECTIVE SWBAT select the correct dimensions
and calculate the area of diagrams and real-world
problems.
1) Why is the shape to the right a trapezoid?
It is a quadrilateral with 1 pair of parallel
sides.
2) Find the area of the trapezoid
 
Agenda
Formula
4
Mini-Lesson Identify the base and height
What is true about the bases and heights of all
the shapes we have studied so far?
Agenda
4
5
Mini-Lesson Identify the base and height
The height is always perpendicular to the base.
height
base
Parallelogram
Agenda
5
6
Mini-Lesson Identify the base and height
The height is always perpendicular to the base.
height
base
Right Triangle
Agenda
6
7
Mini-Lesson Identify the base and height
The height is always perpendicular to the base.
height
height
base
base
Non-Right Triangles
Agenda
7
8
Mini-Lesson Identify the base and height
The height is always perpendicular to the base.
base 2
height
base 2
base 1
height
base 1
Trapezoids
Agenda
8
9
Interleaving Practice
Name the formula you would use to calculate the
area of each shape.
Then, identify the bases and heights in these
next shapes!
Agenda
9
10
Practice Interleaving My Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
7 cm
1)
3 cm
3cm
2 cm
h 2 cm
7 cm
b 7 cm
 
Agenda
10
11
Practice Interleaving Your Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
6 ft
2)
4 ft
3 ft
h 3 ft
4 ft
6 ft
b 6 ft
 
Agenda
11
12
Practice Interleaving My Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
3)
10 m
 
15 m
7 m
h 7 m
15 m
b 15 m
10 m
Agenda
12
13
Practice Interleaving Your Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
4)
4 cm
 
9 cm
3 cm
h 3 cm
9 cm
b 9 cm
4 cm
Agenda
13
14
Practice Interleaving
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
5)
 
 
5 in
4 in
h 4 in
 
b 3 in
3 in
Agenda
14
15
Practice Interleaving
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
 
 
6)
 
13 in
5 in
h 5 in
12 in
b 12 in
Agenda
15
16
Practice Interleaving My Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
7)
 
 
6 mm
4 mm
 
3 mm
h 3 mm
b 7 mm
7 mm
Agenda
16
17
Practice Interleaving Your Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
 
 
8)
 
13 yd
5 yd
4 yd
h 4 yd
b 17 yd
17 yd
Agenda
17
18
Practice Interleaving My Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
9)
base 2 8 ft
8 ft
6 ft
h 6 ft
7 ft
7 ft
 
base 1 6 ft
6 ft
Agenda
18
19
Practice Interleaving Your Turn
Record the base and height needed to find the
area.
Name the Formula you would use to find the Area
 
10)
74 ft
base 2 74 ft
62 ft
48 ft
h 48 ft
62 ft
100 ft
base 1 100 ft
Agenda
19
20
Interleaving Practice
Now that you have all of the information you
need, Calculate the Areas!
Agenda
20
21
Practice Interleaving My Turn
Calculate the Area
7 cm
1)
3 cm
3cm
h 2 cm
b 7 cm
 
 
 
Agenda
21
22
Practice Interleaving Your Turn
Calculate the Area
6 ft
2)
4 ft
h 3 ft
4 ft
 
b 6 ft
 
 
Agenda
22
23
Practice Interleaving My Turn
Calculate the Area
3)
10 m
 
 
15 m
 
h 7 m
b 15 m
10 m
Agenda
23
24
Practice Interleaving Your Turn
Calculate the Area
4)
 
4 cm
 
9 cm
 
h 3 cm
b 9 cm
4 cm
Agenda
24
25
Practice Interleaving My Turn
Calculate the Area
 
5)
 
5 in
h 4 in
 
 
b 3 in
Agenda
25
26
Practice Interleaving
Calculate the Area
6)
 
13 in
 
h 5 in
 
b 12 in
 
Agenda
26
27
Practice Interleaving My Turn
Calculate the Area
7)
 
 
6 mm
4 mm
 
h 3 mm
 
b 7 mm
Agenda
27
28
Practice Interleaving Your Turn
Calculate the Area
 
 
8)
 
13 yd
 
5 yd
h 4 yd
b 17 yd
Agenda
28
29
Practice Interleaving My Turn
Calculate the Area
9)
base 2 8 ft
 
 
h 6 ft
7 ft
7 ft
 
 
base 1 6 ft
 
Agenda
29
30
Practice Interleaving Your Turn
Calculate the Area
 
10)
base 2 74 ft
 
62 ft
 
h 48 ft
62 ft
 
 
base 1 100 ft
Agenda
30
31
Independent Practice
Now, on your own calculate areas of Triangles,
Parallelograms, and Trapezoids! (6 min)
Agenda
31
32
Practice Independent
Calculate the Area
 
 
13 in
12 in
 
 
5 in
Agenda
32
33
Practice Independent
4.5 ft
Calculate the Area
5 ft
3 ft
5 ft
 
 
4.5 ft
 
Agenda
33
34
Practice Independent
Find the area.
19 m
 
 
32 m
37 m
 
 
 
15 ft
Agenda
34
35
Practice Independent
Find the area.
b 16 in
 
 
h 17 in
 
 
Agenda
35
36
Practice Interleaving Your Turn
Find the area.
h 18 ft
b 17 ft
Agenda
36