31

TitleThe number line and equivalent fractions, Clip 1 of 1: Multiple representations for equivalent fractions

DescriptionIn this clip researcher Carolyn Maher asked Graham what his argument would be for why two fourths could be labeled one half. He replied that one half plus one half would equal a whole and that two...

32

1 Analytic found

TitleFraction as number, an introduction, Clip 3 of 8: Permanent color names and flexible number names for rods

DescriptionIn the third of eight clips from this session, researcher Carolyn Maher asked the students what number name they would give the red rod if the green rod was called one. Beth said that the red rod...

33

1 Analytic found

TitleFraction as number, an introduction, Clip 4 of 8: Establishing a unit for comparing length of rods

DescriptionIn the fourth of eight clips from this session, researcher Carolyn Maher mentioned that she had heard a student suggest that the red rod be called one if the dark green rod were called one. She asked...

34

TitleComparing fractions and evaluating models that represent solutions, Clip 7 of 8: Meredith's challenge, does the model work?

DescriptionIn the seventh clip Amy, Jacquelyn, and James built another rod model at the overhead to show their solution to the problem: Which is larger one half or one quarter. Amy explained that they had tried...

35

5 Analytics found

TitleComparing fractions, a whole class debate, Clip 3 of 5: Brian challenges the girls' argument

DescriptionIn the third clip from this session, the class reviewed the problem: Which is bigger, one half and one third, and by how much? Laura and Jessica built a model to show that one half was larger than one...