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 Addition


 

Money Model
Clock Model
Integers
Get to a Friendly Number
Connecting Addition to Subtraction
Over
Give and Take
Give and Take
Get to a Friendly Number
Get to a Friendly Number
Over
Over
Get to a Friendly Number
Swapping
Swapping
Building Number
Over
Over
Get to a Friendly Number
Over

 

Subtraction


 

Integers
Integers
Over
Removal vs. Difference
Difference vs. Removal
Remove to a Friendly Number
Over
Remove to Friendly Number Over
Connecting Addition to Subtraction
Over
Constant Difference
Over
Over
Distance vs. Removal
Over

 

Multiplication


 

Over
Times Ten
Using Quarters
Double and Halve
Over
Using Quarters
Double and Halve
Over
Over
Using Quarters
Multiply to Divide
Over
Over and Adjust
Building the Ratio Table
Five is Half of Ten
Over
Building the Ratio Table
Building the Ratio Table
Place Value Relationships
Over
Place Value Relationships
Over

 

Division


 

Division is Fair Sharing
Equivalent Ratios
9's Divisibility Relationships
Over and Under
Smart Partial Quotients
Smart Partial Quotients
Over and Under
Remainders
Smart Partial Quotients
Partial Quotient
Equivalent Ratios

 

Ratio and Proportion, Percents, Fractions


 

Fractions as Operators
Scaling Fractions
Fraction Multiplication
Reasoning about Percents
Fractions as Operators
Inverse Variation
Over
Data Centers
Adding Fractions
Fractions as Fair Sharing
Fractions as Operators
Fractions as Operators
Fractions as Operators

 

Geometry 


 

Quadrilaterals
Quadrilaterals
Cool Patterns
Triangles
Congruent Angles
Rectangles

 

Place Values, Integers


 

Integers
Subtraction of Integers
Integers
Integer
Place Value
Place Value
Place Value

 

Solving Equations


 

Order of Operations
Order of Operations
Solving Equations
Order of Operations
Solving Equations
Solving Equations
Order of Operations
Order of Operations

 

Statistics


 

Measures of Center

 

Problem Strings with Models


 

Subtraction
Multiplication