diff --git a/ruby/day1/file.rb b/ruby/day1/file.rb
new file mode 100644
index 0000000..59b6807
--- /dev/null
+++ b/ruby/day1/file.rb
@@ -0,0 +1 @@
+(1..10).each{|i| puts "This is sentence number #{i}"}
diff --git a/ruby/day1/guess.rb b/ruby/day1/guess.rb
new file mode 100644
index 0000000..c979980
--- /dev/null
+++ b/ruby/day1/guess.rb
@@ -0,0 +1,10 @@
+number = 1+rand(9)
+guess = -1
+puts "Guess a number between 1 and 10"
+while guess != number
+	print "Enter your guess: "
+	guess = gets.to_i
+	puts "your guess it too high" if guess > number
+	puts "your guess it too low" if guess < number
+end
+puts "Congratulations you've guessed the correct number"
diff --git a/ruby/day1/selfstudy.md b/ruby/day1/selfstudy.md
new file mode 100644
index 0000000..eac296e
--- /dev/null
+++ b/ruby/day1/selfstudy.md
@@ -0,0 +1,25 @@
+Find:
+ - The Ruby API
+  => http://www.ruby-doc.org/core-1.8.7/index.html
+ - The free online version of Programming Ruby: The Pragmatic Programmer's Guide
+  => http://ruby-doc.org/docs/ProgrammingRuby/
+ - A method that substitutes part of a string
+  => str.sub(pattern, replacement) also str.sub!,str.gsub,str.gsub!
+ - Information about Ruby's regular expressions
+  => Regexp
+ - Information about Ruby ranges
+  => Range (1..2) vs (1...2) (eg. [1,2] vs [1])
+
+Do:
+- Print the string "Hello, world."
+ => puts "Hello, world."
+- For the string "Hello, Ruby." find the index of the word "Ruby."
+ => "Hello, Ruby.".index("Ruby.")
+- Print your name ten times
+ => (1..10).each{puts "Andreas"}
+- Print the string "This is sentence number 1." where the number 1 changes from 1 to 10
+ => (1..10).each{|i| puts "This is sentenc number #{i}"}
+- Run a Ruby program from a file
+ => ruby file.rb
+- Bonus problem: if you're feeling the need for a little more, write a program that picks a random number.
+  Let a player guess the number, telling the player whether the guess is too low or too high.