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

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

Multiply and divide within 100.

Represent and solve equations and inequalities graphically.

Understand the relationship between zeros and factors of polynomials.

Represent and solve problems involving addition and subtraction.

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

Represent and analyze quantitative relationships between dependent and independent variables.

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

Use the four operations with whole numbers to solve problems.

Solve systems of equations.

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

Generate and analyze patterns.

Analyze and solve linear equations and pairs of simultaneous linear equations.

Create equations that describe numbers or relationships

Interpret the structure of expressions.

Write and interpret numerical expressions.

Work with addition and subtraction equations.

Work with radicals and integer exponents.

Analyze patterns and relationships.

Rewrite rational expressions.

Solve equations and inequalities in one variable.

Gain familiarity with factors and multiples.

Perform arithmetic operations on polynomials.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Use polynomial identities to solve problems.

Reason about and solve one-variable equations and inequalities.

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

Write expressions in equivalent forms to solve problems.

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

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

Add and subtract within 20.

Represent and solve problems involving multiplication and division.

Use properties of operations to generate equivalent expressions.
problem_activity: Narrative
The purpose of this Number Talk is to elicit strategies and understandings students have for addition and subtraction. These understandings help students develop fluency and will be helpful later in this lesson when students add and subtract to find unknowns in different positions.
Launch
Display one expression.
“Give me a signal when you have an answer and can explain how you got it.”
1 minute: quiet think time
Activity
Record answers and strategy.
Keep expressions and work displayed.
Repeat with each expression.
Student Facing
Find the value of each expression mentally.
\(4 + 6\)
\(6 + 4\)
\(10 - 6\)
\(10 - 4\)
Student Response
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Activity Synthesis
“Who can restate _____’s reasoning in a different way?”
“Did anyone have the same strategy but would explain it differently?”
“How are all the expressions related?”


correct_option_index: 27