options: Use properties of operations to generate equivalent expressions.

Apply and extend previous understandings of arithmetic to algebraic 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.

Understand the relationship between zeros and factors of polynomials.

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

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

Write expressions in equivalent forms to solve problems.

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

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

Work with addition and subtraction equations.

Rewrite rational expressions.

Represent and solve equations and inequalities graphically.

Reason about and solve one-variable equations and inequalities.

Use the four operations with whole numbers to solve problems.

Solve equations and inequalities in one variable.

Represent and solve problems involving addition and subtraction.

Represent and analyze quantitative relationships between dependent and independent variables.

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

Use polynomial identities to solve problems.

Perform arithmetic operations on polynomials.

Represent and solve problems involving multiplication and division.

Solve systems of equations.

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

Write and interpret numerical expressions.

Create equations that describe numbers or relationships

Gain familiarity with factors and multiples.

Analyze patterns and relationships.

Interpret the structure of expressions.

Multiply and divide within 100.

Work with radicals and integer exponents.

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

Add and subtract within 20.

Generate and analyze patterns.
problem_activity: Narrative
The purpose of this activity is for students to choose from activities that offer practice adding two-digit numbers within 100. Students choose from any stage of previously introduced centers.
How Close?
Target Numbers
Five in a Row
Required Materials
Materials to Gather
Materials from previous centers
Required Preparation
Gather materials from:
How Close? Stages 1–3
Target Numbers, Stages 1–3
Five in a Row, Stages 1–6
Launch
Groups of 2
“Now you are going to choose from centers we have already learned.”
Display the center choices in the student book.
“Think about what you would like to do.”
30 seconds: quiet think time
Activity
Invite students to work at the center of their choice.
10 minutes: center work time
Student Facing
Choose a center.
How Close?
[IMG]
Target Numbers
[IMG]
Five in a Row
[IMG]
Activity Synthesis
“Diego and Elena are playing How Close. Diego has a sum of 91. Elena has a sum of 89. Who gets a point for being closer to 100? How do you know?”


correct_option_index: 32