options: Use polynomial identities to solve problems.

Interpret the structure of expressions.

Work with addition and subtraction equations.

Perform arithmetic operations on polynomials.

Gain familiarity with factors and multiples.

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

Reason about and solve one-variable equations and inequalities.

Solve equations and inequalities in one variable.

Write expressions in equivalent forms to solve problems.

Use the four operations with whole numbers to solve problems.

Generate and analyze patterns.

Write and interpret numerical expressions.

Rewrite rational expressions.

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

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

Work with radicals and integer exponents.

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

Solve systems of equations.

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

Add and subtract within 20.

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

Represent and solve equations and inequalities graphically.

Represent and solve problems involving multiplication and division.

Represent and solve problems involving addition and subtraction.

Represent and analyze quantitative relationships between dependent and independent variables.

Multiply and divide within 100.

Use properties of operations to generate equivalent expressions.

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

Apply and extend previous understandings of arithmetic to algebraic expressions.

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

Analyze patterns and relationships.

Understand the relationship between zeros and factors of polynomials.

Create equations that describe numbers or relationships

Solve problems involving the four operations, and identify and explain patterns in arithmetic.
problem_activity: Stage 2: Subtract 1 or 2
Required Preparation
Materials to Gather
Number cards 0–10
Two-color counters
Materials to Copy
Blackline Masters
Five in a Row Addition and Subtraction Stages 1 and 2 Gameboard

Narrative
Students choose a number card 0-10 and choose to subtract 1 or 2 from the number on their card and then place their counter on the difference.
Variation:
Students can choose to add or subtract 1 or 2.
Additional Information
Each group of 2 needs 25 counters.


correct_option_index: 19