Choose a small source opportunity

• The Picture-Card Sleeve · own empty page
• Find the Game in the Mini-Book · own empty page
• The Moon-Sock Shop · own empty page
• The Silent Space Parade · own empty page
• Two Texts about a Paper Boat · own empty page
• Two Texts about a Toy Garden · own empty page
• A Guide for the Star Card · own empty page
• A Guide for the Puppet Ticket · own empty page

The first and later source families are related opportunities. Earlier exposure, help and tasks differ; this does not establish independent gain or an unseen test.