Cartoon Similarity

1
Cartoon Similarity

• Using cartoons to draw similar figures

2
The Cartoon

• What to do with your cartoon
• cut around the edges of your cartoon so that
  they are straight
• (use a ruler to create a border if it doesnt
  have one)

3
The Cartoon

• After you cut out the cartoon
• Glue your cartoon to a white sheet of paper in
  one of the corners, but not right against edge
• like this

4
The Grid

• Use a ruler to measure the length and width of
  your cartoon in centimeters and write it on your
  paper near your cartoon

5cm
Yours may not be 5cm this is just an example
5cm
5
The Grid

• NowTime to draw the grid!
• On the paper (not on the cartoon), Make one
  centimeter marks on opposite sides

Start on the left and go towards the right
across the top and bottom Be careful measuring
your grid will turn out better the last block
may be smaller than one centimeter
1cm 1cm 1cm 1cm 1cm
1cm 1cm 1cm 1cm 1cm
6
The Grid

• NowTime to draw the grid!
• Connect the marks
• BE careful you have one shot at this!

1cm 1cm 1cm 1cm 1cm
It is okay if all your squares arent exactly
the same size but try to get them as close as
possible
1cm 1cm 1cm 1cm 1cm
7
The Scale Drawing

• Time to blow up your cartoon. The scale factor
  is 4. You are making your cartoon 4 times as
  large. What do you do?

1cm 1cm 1cm 1cm 1cm
1cm 1cm 1cm 1cm 1cm
multiply everything by four!
8
The Scale Drawing

• You need to create a grid that is four times as
  large as your original. My original is 5cm by
  5cm. You have a choice here You can choose a
  scale of 1cm to 4cm, or you can make it huge and
  go from 1cm to 4in

9
The Cartoon

• Depending on how big your cartoon is, you may
  need to add paper to your original sheet

10
The Drawing

• To draw the large grid you need to multiply the
  length and width of the small cartoon by four and
  then draw a new large square or rectangle

11
The Scale Drawing

• You need to create a grid that is four times as
  large as your original. My original is 5cm by
  5cm. Im choosing 1cm to 4cm, so my new grid is
  20cm to 20cm

Now mark off 4cm marks! Left to right and top
to bottom
12
The Drawing

• Now you can draw! You do not have to know how to
  draw to do this. The grid helps you with spatial
  relationships

13
The Drawing

• Now you can draw! You do not have to know how to
  draw to do this. The grid helps you with spatial
  relationships

Draw the new picture one square at a time
Notice spatial relationships here and it will
look Exactly like original
14
Cartoon Similarity

• Finished Product

15
Questions

• Write the questions and then answer them on your
  scale drawings use your text to help.
• 1. How does the scale factor affect the size of a
  shape or figure?
• 2. What is a dilation? How does it relate to
  scale drawings?
• 3. Is a dilation an Isometry? Why or Why Not?