options: Create equations that describe numbers or relationships

Apply and extend previous understandings of arithmetic to algebraic expressions.

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

Rewrite rational expressions.

Represent and solve equations and inequalities graphically.

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

Use properties of operations to generate equivalent expressions.

Write expressions in equivalent forms to solve problems.

Multiply and divide within 100.

Use the four operations with whole numbers to solve problems.

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

Write and interpret numerical expressions.

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

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

Generate and analyze patterns.

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

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

Solve equations and inequalities in one variable.

Work with addition and subtraction equations.

Reason about and solve one-variable equations and inequalities.

Analyze patterns and relationships.

Work with radicals and integer exponents.

Solve systems of equations.

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.

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

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

Understand the relationship between zeros and factors of polynomials.

Perform arithmetic operations on polynomials.

Add and subtract within 20.

Use polynomial identities to solve problems.

Interpret the structure of expressions.

Gain familiarity with factors and multiples.
problem_activity: Task
Susan has an ear infection. The doctor prescribes a course of antibiotics. Susan is told to take 250 mg doses of the antibiotic regularly every 12 hours for 20 days.
Susan is curious and wants to know how much of the drug will be in her body over the course of the 20 days. She does some research online and finds out that at the end of 12 hours, about 4% of the drug is still in the body.
What quantity of the drug is in the body right after the first dose, the second dose, the third dose, the fourth dose?
When will the total amount of the antibiotic in Susan’s body be the highest? What is that amount?
Answer Susan's original question: Describe how much of the drug will be in her body at various points over the course of the 20 days.


correct_option_index: 7