On Bloomz you are able to transfer a student to a new class by adding the student's parent to your new class. Here is how you can do so:

• Create your new class
• Select the name of your old class on the left hand menu
• Click Members icon on the bottom menu 
• Click Manage on the right 
• Select the name of the student's parent you would like to transfer
• Click Invite icon on the bottom menu
• Select your new class
• Click on Parent icon 
• A draft message should show up inviting the parent to the new class
• Click Send on the top right
• The parent and student should be added to the new class