Step 1

about_asserts

Step 2

about_nil

Step 3

about_objects

Step 4

about_arrays

Step 5

about_array_assignment

Step 6

about_hashes

Step 7

about_strings

Step 8

about_symbols

Step 9

about_regular_expressions

Step 10

about_methods

Step 11

about_keyword_arguments

Step 12

about_constants

Step 13

about_control_statements

Step 14

about_true_and_false

Step 15

about_triangle_project

Step 16

about_exceptions

Step 17

about_triangle_project_2

Step 18

about_iteration

Step 19

about_blocks

Step 20

about_sandwich_code

Step 21

about_scoring_project

Step 22

about_classes

Step 23

about_open_classes

Step 24

about_dice_project

Step 25

about_inheritance

Step 26

about_modules

Step 27

about_scope

Step 28

about_class_methods

Step 29

about_message_passing

Step 30

about_proxy_object_project

Step 31

about_to_str

Step 32

about_java_interop

Step 33

about_extra_credit