options: Create equations that describe numbers or relationships

Represent and solve equations and inequalities graphically.

Rewrite rational expressions.

Reason about and solve one-variable equations and inequalities.

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

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

Write and interpret numerical expressions.

Use the four operations with whole numbers to solve problems.

Multiply and divide within 100.

Write expressions in equivalent forms to solve problems.

Solve systems of equations.

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

Gain familiarity with factors and multiples.

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

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

Apply and extend previous understandings of arithmetic to algebraic expressions.

Add and subtract within 20.

Use polynomial identities to solve problems.

Work with radicals and integer exponents.

Interpret the structure of expressions.

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

Represent and analyze quantitative relationships between dependent and independent variables.

Analyze patterns and relationships.

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

Solve equations and inequalities in one variable.

Use properties of operations to generate equivalent expressions.

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

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

Generate and analyze patterns.

Represent and solve problems involving multiplication and division.

Understand the relationship between zeros and factors of polynomials.

Represent and solve problems involving addition and subtraction.

Work with addition and subtraction equations.

Perform arithmetic operations on polynomials.
problem_activity: Narrative
This Number Talk encourages students to think about how they may use known sums and differences to find the value of other sums and differences. This understanding will be helpful as students continue building fluency with addition and subtraction within 20.
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 strategies.
Keep expressions and work displayed.
Repeat with each expression.
Student Facing
Find the value of each expression mentally.
\(10 - 5\)
\(11 - 5\)
\(12 - 6\)
\(13 - 6\)
Student Response
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Activity Synthesis
“How did the third expression help you find the value of the last expression?”


correct_option_index: 16