- Recognize word problems that include multiplication
- Write word problems for addition
- Write word problems for subtraction.
- Add and subtract with materials
- Add and subtract with square or rectangle diagrams
- Add and subtract with least common denominators

Resources: All of my fraction applets

A SMART Notebook with fraction circles in it! (This worked
way better than I expected)

A SMART Notebook with grids for fraction squares in it, and a video showing how it works.

Instructions for explanation videos about fractions

A SMART Notebook with grids for fraction squares in it, and a video showing how it works.

Instructions for explanation videos about fractions

Writing word problems

Watch:

Adding and subtracting with materials:A fraction of something: multiplication
and recognizing wholes

How to specify a fractional
amount for an addition or subtraction word problem

Subtraction word problems revisited

Read/do: Subtraction word problems revisited

Analyzing word problems "of" and other
things that might go wrong. An analyzed
example. Word
problems to analyze

Assignment 56: Write addition and
subtraction
of fractions
word problems . (Warning--if you mess up your subtraction word
problems, I will insist that you redo them until you get them right) July
25
Quiz: Analyzing fraction
addition and
subtraction word problems. (In D2L quizzes) July
25

Watch: Examples of how to explain
adding and subtracting fractions with different denominators

Assignment: July 25

Adding and subtracting with array pictures or materialsAssignment: July 25

Assn 57:
Adding
and subtracting with fraction circles

Instructions for explanation videos about fractions

Instructions for explanation videos about fractions

Watch:

Read: My written
example of how to explain adding fractions with different
denominators

Assignment: July 27

Adding and subtracting fractions numerically: with and without a least
common denominatorAssignment: July 27

Assn 58: Record a
detailed description
of how to add fractions using an array diagram, paying special
attention to how the array is formed, and how the equivalent fractions
are deduced using multiplication from the array (3/8 + 4/5).

I recommend that you wait until you have feedback on your addition explanation, before doing...

Assn 59: Then, do the same thing for a subtraction .of fractions problem (7/8 - 2/3). July 28

Instructions for explanation videos about fractions

I recommend that you wait until you have feedback on your addition explanation, before doing...

Assn 59: Then, do the same thing for a subtraction .of fractions problem (7/8 - 2/3). July 28

Instructions for explanation videos about fractions

Watch: 3 levels of abstraction in
numerical fraction work

Assignment:

Assignment:

Assn 60: Choose a fraction addition or
subtraction problem where the least common denominator is smaller than
the denominator that you get by multiplying the two denominators, and where neither denominator is a multiple of the other (for example, 4 is a multiple of 2, so you can't use halves and fourths), and
show how compute the sum or difference in all 3 ways I showed. (Pencil
and paper work is sufficient--carefully show all steps in your work). July
28