Contemplate Then Calculate: Algebra I Counting Circles [21 minutes] from New Visions for Public Schools on Vimeo.
Contemplate Then Calculate: Grade 6 Telescoping Sums [14 minutes] from New Visions for Public Schools on Vimeo.
Contemplate Then Calculate: Algebra I Counting Squares [27 minutes] from New Visions for Public Schools on Vimeo.