Ratios and rates
Students learn to compare amounts using ratios, like 2 cups of flour for every 3 cups of water. They use these to solve everyday problems involving prices, recipes, and speed.
This is the year arithmetic stretches into algebra. Students start using letters in place of numbers, so 3 times some unknown becomes 3x, and they solve simple equations to find what x stands for. They also learn to compare amounts using ratios and rates, like miles per hour or the price of one apple. By spring, students can write a short equation for a word problem and solve it.
Students learn to compare amounts using ratios, like 2 cups of flour for every 3 cups of water. They use these to solve everyday problems involving prices, recipes, and speed.
Students divide fractions by fractions and get fluent with adding, subtracting, multiplying, and dividing decimals. Expect more problems that mix money, measurement, and long division.
Students extend the number line to include negatives, working with temperatures below zero, elevations, and account balances. They plot points in all four sections of a coordinate grid.
Letters start standing in for numbers. Students write and simplify expressions like 3x + 5, solve one-step equations, and use simple inequalities to describe real situations.
Students find the area of triangles and odd shapes by breaking them into pieces. They also calculate the volume of boxes with fractional sides and the surface area of 3D figures using nets.
Students learn what makes a question a statistical one and summarize data with the mean, median, and range. They read and build dot plots, histograms, and box plots.
Students read a math problem carefully, figure out what it's actually asking, and keep trying even when the first approach doesn't work.
Students take a real situation (like splitting a lunch bill) and turn it into numbers and symbols to solve it, then explain what the answer actually means in the original context.
Students explain why their math answer is correct, using numbers or examples as proof. They also listen to a classmate's reasoning and point out where it holds up or falls apart.
Students take a real situation (splitting a bill, planning a garden, figuring out a trip) and write an equation or draw a diagram to solve it. Math becomes a tool for problems that exist outside the classroom.
Students choose the right tool for each math problem, whether that means reaching for a calculator, sketching it out on paper, or making a quick estimate in their head.
Students use the right math words, label their answers with the correct units (like inches or dollars), and check that their calculations are exact. Sloppy language or a missing label can make a correct answer look wrong.
Students learn to spot patterns and hidden structure in math problems, like noticing that every even number can be split into two equal groups. Recognizing that structure helps them solve new problems faster without starting from scratch each time.
When the same steps keep showing up in a problem, students notice the pattern and use it as a shortcut. That habit saves time and builds toward formulas and rules students can apply on their own.
| Standard | Definition | Code |
|---|---|---|
| Make Sense of Problems | Students read a math problem carefully, figure out what it's actually asking, and keep trying even when the first approach doesn't work. | DC-MATH.MP.6.1 |
| Reason Abstractly | Students take a real situation (like splitting a lunch bill) and turn it into numbers and symbols to solve it, then explain what the answer actually means in the original context. | DC-MATH.MP.6.2 |
| Construct Arguments | Students explain why their math answer is correct, using numbers or examples as proof. They also listen to a classmate's reasoning and point out where it holds up or falls apart. | DC-MATH.MP.6.3 |
| Model with Mathematics | Students take a real situation (splitting a bill, planning a garden, figuring out a trip) and write an equation or draw a diagram to solve it. Math becomes a tool for problems that exist outside the classroom. | DC-MATH.MP.6.4 |
| Use Tools Strategically | Students choose the right tool for each math problem, whether that means reaching for a calculator, sketching it out on paper, or making a quick estimate in their head. | DC-MATH.MP.6.5 |
| Attend to Precision | Students use the right math words, label their answers with the correct units (like inches or dollars), and check that their calculations are exact. Sloppy language or a missing label can make a correct answer look wrong. | DC-MATH.MP.6.6 |
| Use Structure | Students learn to spot patterns and hidden structure in math problems, like noticing that every even number can be split into two equal groups. Recognizing that structure helps them solve new problems faster without starting from scratch each time. | DC-MATH.MP.6.7 |
| Express Regularity | When the same steps keep showing up in a problem, students notice the pattern and use it as a shortcut. That habit saves time and builds toward formulas and rules students can apply on their own. | DC-MATH.MP.6.8 |
Sixth graders work with whole numbers, fractions, and negative numbers to solve problems. They use number-system rules to compare, order, and calculate across all three types of numbers.
Sixth graders write and solve expressions using addition, subtraction, multiplication, and division. They translate word problems into math notation and work out the answer.
Students read and build tables, bar graphs, and dot plots to answer questions about real data. They also find the mean, median, and range to summarize what a set of numbers shows.
Students sort, describe, and measure flat and solid shapes, identifying angles, side lengths, area, and volume at a sixth-grade level.
Students use ratios to solve everyday problems, like figuring out how far a car travels per gallon or how much of each ingredient goes into a recipe. The math connects two quantities and scales them up or down.
| Standard | Definition | Code |
|---|---|---|
| Counting and Number | Sixth graders work with whole numbers, fractions, and negative numbers to solve problems. They use number-system rules to compare, order, and calculate across all three types of numbers. | DC-MATH.K8.6.1 |
| Operations and Algebraic Thinking | Sixth graders write and solve expressions using addition, subtraction, multiplication, and division. They translate word problems into math notation and work out the answer. | DC-MATH.K8.6.2 |
| Measurement and Data | Students read and build tables, bar graphs, and dot plots to answer questions about real data. They also find the mean, median, and range to summarize what a set of numbers shows. | DC-MATH.K8.6.3 |
| Geometry | Students sort, describe, and measure flat and solid shapes, identifying angles, side lengths, area, and volume at a sixth-grade level. | DC-MATH.K8.6.4 |
| Ratios and Proportional Relationships | Students use ratios to solve everyday problems, like figuring out how far a car travels per gallon or how much of each ingredient goes into a recipe. The math connects two quantities and scales them up or down. | DC-MATH.K8.6.5 |
DC's spring summative math test for grades 3 through 8, aligned to DC's Common Core-based math standards.
Alternate assessment for students with the most significant cognitive disabilities, given in grades 3-8 and high school in ELA, math, and science.