Combining Shares or Adding Fractions

MMO Session 5

Today’s Agenda

• Case Discussions• Math Activity• Break• Math Activity Discussion• DVD• Examining Curriculum Resources• Exit Card/Lunch

Key Ideas

• The meaning of multiplication and division may need to be extended when the numbers to be operated on shift from whole numbers to fractions.

• The equivalence of a ÷ (b/c) and a x (c/b) can be seen by considering different interpretations of a single diagram.

Consider this as you discuss…

What do we learn about the meaning of addition as we explore the complexities of

adding fractions?

What must we understand about fractions in order to figure out how to add them?

Case Discussions

What do these

students understand

?

What have these

students yet to learn?

Math Activity

• Draw a diagram to solve each• Write an arithmetic sentence that matches

your diagram solution• Determine which of the boxed arithmetic

sentences correspond to each problem(you may choose more than one)

Math Discussion

What did you notice while doing this activity?

DVD

• What commonalities do you see in the work of the students and your own work?

• How would your explain the differences?

Homework

• Read Chapter 6 Introduction and Cases• Complete: Student Thinking Assignment Page 162

All late assignments from Sessions 1-3 ( including the assignment which was due today) are due to us by November 22 in order to receive credit.

Exit Ticket

• What was significant for you today in the math session?

• What questions do you now have as a result of this seminar?