You may want to print: the problems that are discussed
in the videos
Watch:
Assignment:
Recognizing and analyzing word problems
Multiplying fractions with materials
Multiplying fractions with arrays and the standard algorithm
Assignment
Assn. 55: Explain in a video
a. how to draw an array diagram for a product of two fractions
(make sure your explanations of why your diagram is a sensible
matches the diagram you draw. This means if you are
using an "of" interpretation, that you have a
subset-type-diagram, and if you are using an "area of a
rectangle" interpretation, you should use a symmetric
diagram).
b. Explain how to get from your diagram to the standard
algorithm for multiplication of fractions.
Instructions for explanation
videos about fractions
Note: I am looking for an explanation that includes all of
these steps: *statement of the problem (fraction x fraction), *
interpretation of the problem (in words), *diagram that shows
the interpretation, *numerical standard algorithm with
explanation of how to get it from the diagram.
Assn 60: Watch the videos,
practice, and ask questions until you understand how to make
sense of the standard algorithm for dividing fractions
using both a partitive division interpretation and an
algebraic/fact family interpretation. Then make a video,
or write a detailed explanation for each way of
explaining the standard algorithm). You should be thinking
about how you could explain the division of fractions algorithm
to a class of students in a way that would make sense (grade
level here is 6-8). Your goal here is to make the
connections between one of the informal ways of finding the
solution to a division of fractions problem to the standard
algorithm for dividing.