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

Represent and solve problems involving multiplication and division.

Write and interpret numerical expressions.

Solve systems of equations.

Represent and analyze quantitative relationships between dependent and independent variables.

Interpret the structure of expressions.

Add and subtract within 20.

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

Work with radicals and integer exponents.

Gain familiarity with factors and multiples.

Create equations that describe numbers or relationships

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

Work with addition and subtraction equations.

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

Represent and solve problems involving addition and subtraction.

Represent and solve equations and inequalities graphically.

Solve equations and inequalities in one variable.

Rewrite rational expressions.

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

Use polynomial identities to solve problems.

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

Use the four operations with whole numbers to solve problems.

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

Use properties of operations to generate equivalent expressions.

Reason about and solve one-variable equations and inequalities.

Generate and analyze patterns.

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

Multiply and divide within 100.

Perform arithmetic operations on polynomials.

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

Write expressions in equivalent forms to solve problems.

Analyze patterns and relationships.

Understand the relationship between zeros and factors of polynomials.

Apply and extend previous understandings of arithmetic to algebraic expressions.
problem_activity: Stage 2: Factors 1–9
Required Preparation
Materials to Gather
Paper clips
Two-color counters
Materials to Copy
Blackline Masters
Five in a Row Multiplication and Division Stage 2 Gameboard

Narrative
Students multiply using factors of 1–9. Partner A chooses two numbers and places a paper clip on each number. They multiply the numbers and place a counter on the product. Partner B moves one of the paper clips to a different number, multiplies the numbers, and places a counter on the product. Students take turns moving one paper clip, finding the product, and covering it with a counter.
Additional Information
Each group of 2 needs 25 two-color counters and 2 paper clips.


correct_option_index: 27