Ratios, rates, and percents
Students start the year comparing amounts with ratios and unit rates. They figure out best buys, mixtures, and percents like discounts and tips using tables and tape diagrams.
Sixth grade is the year math stretches past whole numbers into the full number line. Students work with negatives, ratios, and percents, and they start solving simple equations with a variable like x. They also dig into real data, asking questions, making graphs, and finding the mean and median. By spring, students can solve a one-step equation, find a percent of a number, and figure out the surface area or volume of a box.
Students start the year comparing amounts with ratios and unit rates. They figure out best buys, mixtures, and percents like discounts and tips using tables and tape diagrams.
Students multiply and divide fractions, mixed numbers, and decimals. They learn to explain their steps and check whether an answer makes sense for the situation.
Students extend the number line below zero to handle things like temperature, elevation, and money owed. They plot points in all four quadrants and compare numbers using greater than and less than.
Students start using letters to stand for unknown numbers. They write and solve simple equations like x plus 7 equals 12 and connect two changing quantities with a graph or table.
Students find the area of triangles and other shapes by cutting them into pieces they already know. They also wrap nets around boxes and prisms to measure surface area and volume.
Students ask questions that have more than one possible answer and gather data to study them. They summarize results with mean, median, and range, and they compare what should happen in a chance experiment with what actually does.
A statistical question expects different answers from different people or sources. Students learn to tell the difference between a question with one fixed answer and one where responses will naturally vary, like "How tall are students in our class?"
Students plan and run their own data investigations, choosing what to measure and why, then use the results to answer a question. They think about how culture and background can shape what gets measured and how the data varies.
Students find the middle value and average of a data set, then measure how spread out the numbers are. Together, those two pieces tell a fuller story about what the data actually shows.
Students pick a chart or graph that fits their data and use it to show patterns or answer a question they came up with. That might mean a dot plot, a histogram, or a box plot, whichever makes the data clearest.
Students look at a set of data, then compare two or more explanations for what the pattern shows. They consider whose perspective is missing and decide which explanation best fits the evidence.
Students list every possible outcome for a chance experiment, such as all the results of flipping a coin or rolling a number cube. They use a diagram or table to organize those possibilities before making predictions.
Students figure out the likelihood of something happening by comparing how many ways it can happen to all possible outcomes. They write that chance as a fraction, a decimal, or a percentage between 0 and 1.
Students run experiments, like flipping a coin or rolling a die, then compare what actually happened to what the math said should happen. They write those chances as fractions, decimals, or percentages to predict what might happen next.
| Standard | Definition | Code |
|---|---|---|
| Recognize a statistical question as one that anticipates variability in the… | A statistical question expects different answers from different people or sources. Students learn to tell the difference between a question with one fixed answer and one where responses will naturally vary, like "How tall are students in our class?" | 6.1.1.1 |
| Design and conduct investigations and experiments to gather data, while… | Students plan and run their own data investigations, choosing what to measure and why, then use the results to answer a question. They think about how culture and background can shape what gets measured and how the data varies. | 6.1.1.2 |
| Identify, determine and interpret measures of center | Students find the middle value and average of a data set, then measure how spread out the numbers are. Together, those two pieces tell a fuller story about what the data actually shows. | 6.1.1.3 |
| Create a visualization about a data set to describe patterns, highlight… | Students pick a chart or graph that fits their data and use it to show patterns or answer a question they came up with. That might mean a dot plot, a histogram, or a box plot, whichever makes the data clearest. | 6.1.1.4 |
| Compare and communicate competing explanations for data trends observed… | Students look at a set of data, then compare two or more explanations for what the pattern shows. They consider whose perspective is missing and decide which explanation best fits the evidence. | 6.1.1.5 |
| Determine the sample space | Students list every possible outcome for a chance experiment, such as all the results of flipping a coin or rolling a number cube. They use a diagram or table to organize those possibilities before making predictions. | 6.1.2.1 |
| Determine the theoretical probability of an event using the ratio between the… | Students figure out the likelihood of something happening by comparing how many ways it can happen to all possible outcomes. They write that chance as a fraction, a decimal, or a percentage between 0 and 1. | 6.1.2.2 |
| Calculate experimental probabilities from experiments where the theoretical… | Students run experiments, like flipping a coin or rolling a die, then compare what actually happened to what the math said should happen. They write those chances as fractions, decimals, or percentages to predict what might happen next. | 6.1.2.3 |
Students find the total area of every face on a box or triangular prism by breaking the shape into flat rectangles and triangles, then adding those areas together. They also explain why the formula they used actually works.
Students find the volume of 3D shapes like triangular and rectangular prisms by choosing the right formula and explaining why it works. They may break the shape apart to make sense of it.
Students convert measurements within the same system, such as changing hours to minutes, pounds to ounces, or feet to inches, to solve real problems that involve different units of the same thing.
Students pick a familiar reference point, like a doorway or a water bottle, and use it to make reasonable guesses about length, weight, time, or cost before measuring.
Students find the area of unusual four-sided and multi-sided shapes by breaking them into rectangles or triangles, then adding those smaller areas together. They use this skill to solve real problems, like calculating the floor space of an oddly shaped room.
Students find a missing angle in a triangle by using the fact that all three interior angles add up to 180 degrees. If two angles are known, subtract their sum from 180 to find the third.
Cut any polygon into triangles to figure out why its interior angles always add up to the same total. Students practice this with shapes from four sides up.
Students plot polygon vertices on a grid using coordinate pairs, then calculate side lengths by subtracting coordinates. The work connects to real situations like reading a map or measuring a floor plan.
| Standard | Definition | Code |
|---|---|---|
| Calculate the measurements of the surface area of rectangular and triangular… | Students find the total area of every face on a box or triangular prism by breaking the shape into flat rectangles and triangles, then adding those areas together. They also explain why the formula they used actually works. | 6.2.3.1 |
| Calculate the measurement of the volume of prisms | Students find the volume of 3D shapes like triangular and rectangular prisms by choosing the right formula and explaining why it works. They may break the shape apart to make sense of it. | 6.2.3.2 |
| Solve situations in various contexts involving conversion of time, weights… | Students convert measurements within the same system, such as changing hours to minutes, pounds to ounces, or feet to inches, to solve real problems that involve different units of the same thing. | 6.2.3.3 |
| Estimate time, weights, capacities, lengths and dollar amounts using benchmarks… | Students pick a familiar reference point, like a doorway or a water bottle, and use it to make reasonable guesses about length, weight, time, or cost before measuring. | 6.2.3.4 |
| Find the area of special quadrilaterals and polygons by composing into… | Students find the area of unusual four-sided and multi-sided shapes by breaking them into rectangles or triangles, then adding those smaller areas together. They use this skill to solve real problems, like calculating the floor space of an oddly shaped room. | 6.2.3.5 |
| Determine missing angle measures in a triangle using the fact that the sum of… | Students find a missing angle in a triangle by using the fact that all three interior angles add up to 180 degrees. If two angles are known, subtract their sum from 180 to find the third. | 6.2.4.1 |
| Decompose polygons into triangles to investigate the sum of the interior angles… | Cut any polygon into triangles to figure out why its interior angles always add up to the same total. Students practice this with shapes from four sides up. | 6.2.4.2 |
| Draw polygons in the coordinate plane given coordinates for the vertices | Students plot polygon vertices on a grid using coordinate pairs, then calculate side lengths by subtracting coordinates. The work connects to real situations like reading a map or measuring a floor plan. | 6.2.4.3 |
Positive and negative numbers represent opposites: money earned vs. spent, temperature above vs. below zero, land above vs. below sea level. Students learn what zero means in each situation and use both types of numbers to describe real quantities.
Students place positive and negative numbers, including fractions and decimals, on a number line. They also plot points using those numbers on a coordinate grid with four sections.
Students read inequality symbols like < and > by placing both numbers on a number line and seeing which one sits further left or right. This works with fractions, decimals, and negative numbers.
Students break a whole number into its prime building blocks and write it using exponents. For example, 12 becomes 2² x 3. A prime number has exactly two factors: 1 and itself.
Students find the largest number that divides evenly into two numbers and the smallest number both can multiply into. They use those relationships to rewrite addition problems in a simpler form.
Students learn that absolute value is the distance a number sits from zero, whether the number is positive or negative. A temperature of -8 and a temperature of 8 are both 8 degrees away from zero, so both have an absolute value of 8.
Students estimate answers before solving a problem with whole numbers, fractions, or decimals, then check whether the exact answer is in the right ballpark for the situation.
Students multiply and divide fractions and mixed numbers, often starting with a drawing or diagram to see what the math is actually doing before moving to a standard procedure.
Students multiply and divide with decimals, fractions, and mixed numbers to solve real problems, then explain how they got the answer. They also explain what the result actually means in the situation.
Students use unit rates to solve real problems: if a car travels 150 miles in 3 hours, how fast is that per hour? They apply the same thinking to compare prices at the store.
Students use diagrams and ratio tables to solve percent problems, like finding a sale price after a discount, calculating a tip, or figuring out what percent one number is of another.
Students write different math expressions that equal the same value, such as showing that 1/2 × 6 and 3 ÷ 1 both equal 3, then explain why they are equal.
Students figure out when a fraction, decimal, and percentage all mean the same amount, then switch between those forms. For example, knowing that 3/4, 0.75, and 75% are the same number.
Students write equations and inequalities that use letters to stand in for unknown numbers, working with positive fractions and decimals to describe real math situations.
Students solve simple one-step equations by figuring out the missing number that makes both sides balance. They also check whether their answer makes sense given the original situation.
Students compare two quantities using ratios, like "3 red tiles for every 2 blue ones," and learn why that kind of comparison works differently than just asking how many more one amount is than another.
Students solve real-world mixing and comparison problems, like combining paint colors or comparing speeds, by organizing information into tables, diagrams, or equations to find equivalent ratios.
Students pick two changing quantities, like hours worked and money earned, and write an equation showing how one depends on the other. They check that the equation, a table of values, and a graph all tell the same story.
| Standard | Definition | Code |
|---|---|---|
| Use positive and negative numbers to describe quantities having opposite… | Positive and negative numbers represent opposites: money earned vs. spent, temperature above vs. below zero, land above vs. below sea level. Students learn what zero means in each situation and use both types of numbers to describe real quantities. | 6.3.5.1 |
| Locate positive and negative rational numbers on a number line | Students place positive and negative numbers, including fractions and decimals, on a number line. They also plot points using those numbers on a coordinate grid with four sections. | 6.3.5.2 |
| Interpret statements of inequality | Students read inequality symbols like < and > by placing both numbers on a number line and seeing which one sits further left or right. This works with fractions, decimals, and negative numbers. | 6.3.5.3 |
| Factor whole numbers | Students break a whole number into its prime building blocks and write it using exponents. For example, 12 becomes 2² x 3. A prime number has exactly two factors: 1 and itself. | 6.3.5.4 |
| Find the greatest common factor of two whole numbers less than or equal to 100… | Students find the largest number that divides evenly into two numbers and the smallest number both can multiply into. They use those relationships to rewrite addition problems in a simpler form. | 6.3.5.5 |
| Understand the absolute value of a rational number as its distance from 0 on… | Students learn that absolute value is the distance a number sits from zero, whether the number is positive or negative. A temperature of -8 and a temperature of 8 are both 8 degrees away from zero, so both have an absolute value of 8. | 6.3.5.6 |
| Estimate solutions to situations with whole numbers, fractions and decimals and… | Students estimate answers before solving a problem with whole numbers, fractions, or decimals, then check whether the exact answer is in the right ballpark for the situation. | 6.3.5.7 |
| Multiply and divide fractions and mixed numbers using visual models to… | Students multiply and divide fractions and mixed numbers, often starting with a drawing or diagram to see what the math is actually doing before moving to a standard procedure. | 6.3.5.8 |
| Solve mathematical situations requiring arithmetic, including multiplication… | Students multiply and divide with decimals, fractions, and mixed numbers to solve real problems, then explain how they got the answer. They also explain what the result actually means in the situation. | 6.3.5.9 |
| Solve situations using the concept of a unit rate 𝑏𝑏 associated with a… | Students use unit rates to solve real problems: if a car travels 150 miles in 3 hours, how fast is that per hour? They apply the same thinking to compare prices at the store. | 6.3.5.10 |
| Solve percent situations using visual models including tables of equivalent… | Students use diagrams and ratio tables to solve percent problems, like finding a sale price after a discount, calculating a tip, or figuring out what percent one number is of another. | 6.3.5.11 |
| Generate equivalent numerical expressions involving positive rational numbers… | Students write different math expressions that equal the same value, such as showing that 1/2 × 6 and 3 ÷ 1 both equal 3, then explain why they are equal. | 6.3.6.1 |
| Determine equivalences among fractions, decimals and percentages involving… | Students figure out when a fraction, decimal, and percentage all mean the same amount, then switch between those forms. For example, knowing that 3/4, 0.75, and 75% are the same number. | 6.3.6.2 |
| Represent mathematical situations using expressions, equations and inequalities… | Students write equations and inequalities that use letters to stand in for unknown numbers, working with positive fractions and decimals to describe real math situations. | 6.3.6.3 |
| Solve one-step equations, including equations of the form 𝑥𝑥 + 𝑝𝑝 = 𝑞𝑞… | Students solve simple one-step equations by figuring out the missing number that makes both sides balance. They also check whether their answer makes sense given the original situation. | 6.3.6.4 |
| Identify and use ratios to compare quantities | Students compare two quantities using ratios, like "3 red tiles for every 2 blue ones," and learn why that kind of comparison works differently than just asking how many more one amount is than another. | 6.3.6.5 |
| Solve ratio and rate situations, including mixtures and concentrations, by… | Students solve real-world mixing and comparison problems, like combining paint colors or comparing speeds, by organizing information into tables, diagrams, or equations to find equivalent ratios. | 6.3.6.6 |
| Use variables to represent two quantities in a situation that change in… | Students pick two changing quantities, like hours worked and money earned, and write an equation showing how one depends on the other. They check that the equation, a table of values, and a graph all tell the same story. | 6.3.7.1 |
Standards-based mathematics assessment for grades 3 through 8 and grade 11, aligned to Minnesota Academic Standards.
Alternate standards-based assessment for eligible students with the most significant cognitive disabilities, administered in the same subjects and grades as the MCA program.
Students should work confidently with fractions, decimals, and percents, including tips, discounts, and sale prices. They should also handle positive and negative numbers, solve simple equations with a variable, and find the area, surface area, and volume of basic shapes.
Cook together and double or halve a recipe. Split a bill, figure out a tip, or compare unit prices at the store. Five minutes of real-world math a few times a week builds more fluency than a worksheet.
Students compare quantities like 3 cups of flour to 2 cups of sugar, or miles per hour. They use tables, tape diagrams, and double number lines to scale recipes, figure out better deals, and solve mixture problems.
A common path is ratios and rates first, then fraction and decimal operations, then percents as a special ratio. Negative numbers and the coordinate plane fit well in the middle of the year, with expressions, equations, and geometry toward the end.
Dividing fractions, the difference between ratios and subtraction comparisons, and percent problems where the part or whole is missing. Plan extra time for visual models like tape diagrams and double number lines before moving to procedures.
Students use them for temperatures below zero, elevations below sea level, and account balances with debits. At home, point them out on a thermostat or bank statement and ask what zero means in that situation.
Ask a question that has more than one possible answer, like how long it takes family members to get ready in the morning. Collect a week of data and talk about the typical time and the spread. That covers the same ideas students practice in class.
Students should solve one-step equations like x + 7 = 15 or 4x = 32 using number sense and the idea of keeping both sides equal. They should also write an equation from a word problem and check whether their answer makes sense in context.
Make sure they can find area by breaking a shape into rectangles and triangles, and that they can build and unfold a box to see its surface area. Solid work with the coordinate plane, including negative coordinates, also pays off later.