options: Number Systems and Quantity: students learn to understand the complex number system and reason quantitatively.

Number & Operations in Base Ten: students learn to work with the base-ten system and build place value understanding.

Modeling: students learn to choose and use appropriate mathematics and statistics to analyze real-world empirical situations, improve decisions, and report on their conclusions and the reasoning behind them.

Measurement & Data: students learn to work with data and measure attributes such as time, money, length, area, and volume. They may learn to compare measurements to operations and convert between different units of measure.

Statistics & Probability: students learn to analyze and produce data distributions, and build understanding of univariate and bivariate data. They learn to interpret data, make statistical inferences, justify conclusions, understand rules of probability, and use probability to make decisions.

Functions: students learn to define, use, and evaluate functions to model relationships between quantities.

Ratios & Proportional Relationships: students learn to recognize, describe, represent, and reason with ratios, rates, proportional relationships, and percent.

Counting & Cardinality: students learn to know number names and the count sequence, count to tell the number of objects, and compare numbers.

Geometry: students learn to classify geometric figures by their properties, and understand and compare the relationships between them. Students develop and use formulas to compute lengths, areas, and volumes, and they use transformations to generate new shapes and compare existing ones. Geometry can be studied with and without coordinates.

Operations & Algebra: students learn to solve problems using algebraic thinking and operations such as addition, subtraction, multiplication, and division. They may learn to identify and explain arithmetic patterns, evaluate or manipulate numerical expressions, and reason with equations and inequalities.

Number & Operations - Fractions: students learn to understand fractions as numbers and may work with them using addition, subtraction, multiplication, and division.
problem_activity: Task
Materials
Coins and dollar bills
Problem with table of costs displayed
| Stuffed Animals at the Pet Shop |             Cost for each animal              |
|---------------------------------|-----------------------------------------------|
|               Dog               |      2 pennies, 3 nickels, and 1 quarter      |
|              Snake              |       6 pennies, 2 nickels, and 2 dimes       |
|              Bird               |       5 nickels, 3 dimes, and 1 quarter       |
|               Cat               | 5 pennies, 5 nickels, 5 dimes, and 1 quarter  |
|             Rabbit              | 7 pennies, 3 nickels, 2 dimes, and 3 quarters |
|              Frog               |        5 pennies, 5 dimes, 5 quarters         |
|             Monkey              |       3 pennies, 3 nickels, 3 quarters        |
How much money would you spend if you purchased one of each animal at the pet shop?
If you have \$3 to spend at the pet shop, what animals would you buy?
What two animals could you buy if you have \$2 to spend? How much change will you get back?
How much money would you spend if you purchased the dog, snake, and the bird?
Make up a problem for your partner to solve.


correct_option_index: 3