options: Create equations that describe numbers or relationships

Rewrite rational expressions.

Write and interpret numerical expressions.

Represent and analyze quantitative relationships between dependent and independent variables.

Represent and solve equations and inequalities graphically.

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

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

Generate and analyze patterns.

Solve equations and inequalities in one variable.

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

Represent and solve problems involving addition and subtraction.

Solve systems of equations.

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

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

Apply and extend previous understandings of arithmetic to algebraic expressions.

Work with addition and subtraction equations.

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

Understand the relationship between zeros and factors of polynomials.

Add and subtract within 20.

Write expressions in equivalent forms 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.

Represent and solve problems involving multiplication and division.

Interpret the structure of expressions.

Gain familiarity with factors and multiples.

Use polynomial identities to solve problems.

Use properties of operations to generate equivalent expressions.

Multiply and divide within 100.

Work with radicals and integer exponents.

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

Reason about and solve one-variable equations and inequalities.

Analyze patterns and relationships.

Perform arithmetic operations on polynomials.
problem_activity: Narrative
The purpose of this Number Talk is to elicit strategies and understandings students have for dividing within 100 and to help students develop fluency.
When students use known multiplication and division facts to divide larger numbers, they look for and make use of structure (MP7).
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 strategy.
Keep expressions and work displayed.
Repeat with each expression.
Student Facing
Find the value of each expression mentally.
\(30\div3\)
\(60\div3\)
\(63\div3\)
\(54\div3\)
Student Response
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Activity Synthesis
“How did you use division facts that you already know to find some of the other quotients?” (I knew that
\(60\div3\)
would be double the answer of
\(30\div3\)
. Once I knew
\(60\div3\)
, I was able to find
\(63\div3\)
by adding another group of 3 and
\(54\div3\)
by taking groups of 3 away.)


correct_option_index: 28