You can move a lesson activity anywhere you would like. You can move it up, move it down, move to previous day, move to the next day or move to homework.
To move an activity, click and drag the activity to the location you would like it to be and then let go.
You can also move an activity to the next (or previous) week in the Lesson Plan, by hovering at the edge of the current week.
Move all activities forward or backward a day with the Add/Remove Empty Day feature.
How To: Add/Remove Empty Day