Passing Checkbox values to model

I am making a model where users can belong to multiple teams and teams have multiple people. I have checkboxes but they don't pass the value onto the object.

class User < ActiveRecord::Base
  attr_accessible :email, :name
  has_many :teams 
  accepts_nested_attributes_for :teams
end


class Team < ActiveRecord::Base
  has_many :users
  attr_accessible :name
end

Here is the code in my controller

def create
@users = User.all
@user = User.new
@teams = Team.all
@user.attributes = {:teams => []}.merge(params[:user] || {})
end

Here is the code in my view file

<%= form_for @user, url: {action: "create"}  do |f| %>
<%= f.label :teams%>
<% for team in @teams %>
<%= check_box_tag team.name, team.name, false, :teams => team.name%>      
<%=  team.name -%>
<% end %>
<%= submit_tag "Create User" %>

I am trying to show it into

<%= user.teams.name %>

But the only output is "Team" Can someone tell me what I am doing wrong?