options: Reason about and solve one-variable equations and inequalities.

Represent and solve problems involving multiplication and division.

Rewrite rational expressions.

Multiply and divide within 100.

Understand the relationship between zeros and factors of polynomials.

Add and subtract within 20.

Work with addition and subtraction equations.

Work with radicals and integer exponents.

Represent and analyze quantitative relationships between dependent and independent variables.

Gain familiarity with factors and multiples.

Create equations that describe numbers or relationships

Generate and analyze patterns.

Write and interpret numerical expressions.

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

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

Represent and solve equations and inequalities graphically.

Perform arithmetic operations on polynomials.

Use properties of operations to generate equivalent expressions.

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

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

Analyze patterns and relationships.

Use the four operations with whole numbers to solve problems.

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

Solve equations and inequalities in one variable.

Solve systems of equations.

Write expressions in equivalent forms to solve problems.

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

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

Represent and solve problems involving addition and subtraction.

Use polynomial identities to solve problems.

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

Interpret the structure of expressions.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Analyze and solve linear equations and pairs of simultaneous linear equations.
problem_activity: Narrative
This warm-up prompts students to carefully analyze and compare different arrays. The activity also enables the teacher to hear how they talk about arrays, rows, and columns, and how they find the total number of objects in an array.
Launch
Groups of 2
Display the image.
“Pick one that doesn’t belong. Be ready to share why it doesn’t belong.”
1 minute: quiet think time
Activity
“Discuss your thinking with your partner.”
2–3 minutes: partner discussion
Record responses.
Student Facing
Which one doesn’t belong?
A
[IMG]
B
[IMG]
C
[IMG]
D
[IMG]
Student Response
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Activity Synthesis
“What do B, C, and D have in common?” (They all show arrays with 3 in each row.)
“D has 4 rows and 3 columns. This rectangle is partitioned into equal-size squares.”


correct_option_index: 26