options: Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Multiply and divide within 100.

Use the four operations with whole numbers to solve problems.

Write and interpret numerical expressions.

Write expressions in equivalent forms to solve problems.

Work with radicals and integer exponents.

Understand the relationship between zeros and factors of polynomials.

Understand solving equations as a process of reasoning and explain the reasoning.

Understand and apply properties of operations and the relationship between addition and subtraction.

Represent and solve problems involving multiplication and division.

Represent and analyze quantitative relationships between dependent and independent variables.

Rewrite rational expressions.

Solve systems of equations.

Create equations that describe numbers or relationships

Work with equal groups of objects to gain foundations for multiplication.

Use polynomial identities to solve problems.

Add and subtract within 20.

Work with addition and subtraction equations.

Represent and solve equations and inequalities graphically.

Solve equations and inequalities in one variable.

Use properties of operations to generate equivalent expressions.

Understand the connections between proportional relationships, lines, and linear equations.

Generate and analyze patterns.

Interpret the structure of expressions.

Analyze patterns and relationships.

Reason about and solve one-variable equations and inequalities.

Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

Represent and solve problems involving addition and subtraction.

Understand properties of multiplication and the relationship between multiplication and division.

Gain familiarity with factors and multiples.

Solve problems involving the four operations, and identify and explain patterns in arithmetic.

Perform arithmetic operations on polynomials.

Analyze and solve linear equations and pairs of simultaneous linear equations.
problem_activity: Narrative
The purpose of this activity is for students to choose from activities that focus on adding and subtracting within 10. Students choose from any stage of previously introduced centers and are encouraged to choose the center that will be most helpful for them at this time.
What’s Behind My Back
Check it Off
Five in a Row: Addition and Subtraction
Find the Pair
Required Materials
Materials to Gather
Materials from previous centers
Required Preparation
Gather materials from previous centers:
What's Behind My Back, Stage 2
Check it Off, Stages 1 and 2
Five in a Row: Addition and Subtraction, Stages 1 and 2
Find the Pair, Stage 2
Launch
Groups of 2
“Now you are going to choose from centers we have already learned.”
Display the center choices in the student book.
“Think about what you would like to do.”
30 seconds: quiet think time
Activity
Invite students to work at the center of their choice.
10 minutes: center work time
Student Facing
Choose a center.
What’s Behind My Back
[IMG]
Check it Off
[IMG]
Five in a Row: Addition and Subtraction
[IMG]
Find the Pair
[IMG]
Activity Synthesis
“How has working on these center activities helped you build fluency with addition and subtraction?”


correct_option_index: 9

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