Seven Squares - Group-worthy Task
Growing rectangles

Width
n:
Perimeter: 2n + 4
Dots: 3(n + 1)
Lines: 5n + 2
L shapes

Height
and width n:
Perimeter: 4n
Number of squares: 2n - 1
Lines: 6n - 2
Two squares

Black
dots n:
White dots: 2n$^2$ - n - 1
Lines: 4n (n - 1)
Square of
Squares
Side
length n:
Number of edge squares: 4n - 4
Lines: 12n - 12
Dots and More
Dots
Side length
n:
Dots: n$^2$ + (n + 1)$^2$
Lines: 2n (n + 1)
Rectangle of
Dots
Side length
n:
Lines:7n
Dots: (n + 1) (2n + 1)