Challenge problems are great options for Choice Time any day. Offering “spicy" variations of worksheets or unfinished activities as Choice Time activities can be another nice option.

May be used alongside activities from days 3 to 15.

The introduction offered for free on my profile is worth reading, and can help get you started. We also have a video PD series to support this curriculum that should be helpful: mathforlove.com/video/ math-for-love-video-pd.