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# Week 7: Whole Number Addition and Subtraction

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by

## Kim Wright

on 6 October 2016

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#### Transcript of Week 7: Whole Number Addition and Subtraction

Do Now:
Today's agenda:
Supporting Invented Strategies
Types of Invented Strategies*
Splitting (+)
Jumping (+)
Compensation (+)

Week 5: Whole Number Addition and Subtraction
-
Commutative
a+b = b+a
Associative
a+b+c = (a+b)+c
or a+(b+c)
or (a + c) + b
Zero
a+0 = a
Commutative and Associative do not apply to subtraction
Thing Numero Uno
: Don't rush
to the standard algorithm!
Thing Numero Dos
: Don't put
away the "toys" too early!
*Even though students aren't technically inventing them, as you are going to build on what they know about place value and show these to them, they are free to use them in multiple ways.
Extending My Little Sister
Ate One Brown Hare...
Splitting
Jumping
Compensation
Starbucks Rewards ?!?

Go to starbucks.com/morestars and make
some notes about the new Rewards program.
Do Now
PICA...simplify
Re-cap 5E Lesson Plan and Tiered Activities
Cuisi-what? Play time
Basic facts and properties of whole number operations with
Cuisenaires

What if little sister loved the peas and kept on going...
55 things and a 17 strawberry tarts?
Really sister?
Splitting
Jumping
Compensation
79 things and a dozen chocolate cupcakes?
Oh my goodness...
Split
Jump
Compensation

Which do you prefer? Why?
You are either in a group of 3...
Or a group of 2...
Assessment
or "
Evaluate
"

in the 5E Model
TEKS
: What do I want students to know?
Lesson objective
: How do I want them to know it?
Assessment: How will I know if they know it?
Reteach
: What will I do if they don't?
Basic Types of Formative Assessment
VDW Ch. 5 (p. 85-94)

Low tech
/
High tech
Observations
Whole class (
Response cards
/
Plickers
)
Sm Group/Indiv (
Index cards
/
)
Interviews
Indiv (
Index cards & math journal
/
ShowMe app
)
Problem-based
plickers.com
Assign cards to students
Create multiple choice questions or T/F questions
Cuise-what?
Take a few minutes and play with the rods.

Write down things you notice about them.