Grade 8
79 Units, 209 Skills
Geometry - Angles and Transformations - Practice
Unit 1
Probability and Statistics - Mean, Median, and Mode - Practice
Unit 2
Triangle Area - Practice
Unit 3
Fraction Multiplication - Practice
Unit 4
Exponents - Division - Intro
Unit 5
Speed, Distance, and Time - Practice
Unit 6
Time - Elapsed Time - Advanced
Unit 7
Measurement - Units Practice - Metric
Unit 8
Exponents - Advanced
Unit 9
Fractions, Decimals, and Percents
Unit 10
Order of Operations - Advanced
Unit 11
Area and Perimeter Complex Shapes
Unit 12
Factoring and Primes - Advanced
Unit 13
Scientific Notation - Practice
Unit 14
Exponents - Multiplication and Division - Practice
Unit 15
Algebra Basic Concepts - Practice
Unit 16
Geometry - Shape Classification (3D) - Practice
Unit 17
Cartesian Grid Transformations - Intro
Unit 18
Triangle Area - Advanced
Unit 19
Geometry - Surface Area of 3D Shapes - Intro
Unit 20
Geometry - Volume of 3D Shapes - Intro
Unit 21
Rates and Ratios - Advanced
Unit 22
Probability and Counting - Single Event - Advanced
Unit 23
Patterning - Number Patterns Practice
Unit 24
Time - Elapsed Time, Negative - Advanced
Unit 25
Negative Integers - Intro
Unit 26
Division 3 by 2 Digit
Unit 27
Area and Perimeter Logic - Intro
Unit 28
Probability and Statistics - Counting and Probability Foundations
Unit 29
Factoring and Greatest Common Factor - Practice
Unit 30
Fraction Division - Intro
Unit 31
Geometry - Circle Area and Circumference - Practice
Unit 32
Geometry - Isosceles and Equilateral Triangles
Unit 33
Percentages - Practice
Unit 34
Digits and Divisibility - Practice
Unit 35
Cartesian Grid Geometry Logic - Intro
Unit 36
Pythagoras - Foundations
Unit 37
Decimal Multiplication - Advanced
Unit 38
Geometry - Intersecting, Parallel, and Perpendicular Lines
Unit 39
Percents and Simple Interest - Intro
Unit 40
Factoring and Lowest Common Multiple - Practice
Unit 41
Fraction Addition and Subtraction - Advanced
Unit 42
Squares and Square Roots - Practice
Unit 43
Decimal Division - Advanced
Unit 44
Fraction Addition and Subtraction, Mixed - Practice
Unit 45
Factoring, Multiplication, Division, Fractions - Intro
Unit 46
Exponents - Multiplication and Division - Advanced
Unit 47
Geometry - Circle Partial Area and Circumference - Intro
Unit 48
Patterning - Number Patterns Advanced
Unit 49
Measurement - Units Advanced - Metric
Unit 50
Geometry - Surface Area of 3D Shapes - Practice
Unit 51
Exponents - Power Law - Intro
Unit 52
Factoring and Greatest Common Factor - Advanced
Unit 53
Algebra Manipulating Variables - Intro
Unit 54
Geometry - Cylinders - Intro
Unit 55
Probability and Statistics - Counting and Probability Practice
Unit 56
Percentages - Advanced
Unit 57
Measurement - Unit Conversion Intro - Metric
Unit 58
Speed, Distance, and Time - Advanced
Unit 59
Ratios of Lengths - Intro
Unit 60
Cartesian Grid Geometry Logic - Practice
Unit 61
Percents and Simple Interest - Practice
Unit 62
Squares and Square Roots - Advanced
Unit 63
Area and Perimeter Logic - Practice
Unit 64
Slope - Intro
Unit 65
Algebra Basic Concepts - Advanced
Unit 66
Factoring and Lowest Common Multiple - Advanced
Unit 67
Probability and Statistics - Mean, Median, and Mode - Advanced
Unit 68
Geometry - Volume Logic with 3D Shapes - Intro
Unit 69
Scientific Notation - Multiplication and Division - Intro
Unit 70
Pythagoras - Intro
Unit 71
Negative Integers - Practice
Unit 72
Speed, Distance, and Time Logic Challenges - Intro
Unit 73
Factoring, Multiplication, Division, Fractions - Practice
Unit 74
Pythagorean Triples - Intro
Unit 75
Cartesian Grid Distance - Intro
Unit 76
Probability and Statistics - Factorial Form Intro
Unit 77
Exponents - Power Law - Practice
Unit 78
Pythagorean Theorem with Decimals - Intro
Unit 79
This math unit begins by introducing students to the concept of the arithmetic mean with exercises that involve finding a missing value needed to achieve a specified mean. It progressively covers more complex scenarios, such as removing or adding values to alter the mean, and calculating the impact of changing a specific value in a data set. Students practice these concepts with multiple-choice problems and scenarios that require both basic and advanced analytical skills. As the unit advances, it emphasizes a deeper understanding of how individual data changes affect the overall average, reinforcing the students' ability to manipulate and interpret sets of numbers within different statistical contexts. This progression builds from fundamental calculations to more sophisticated statistical manipulations, showcasing applications of the mean in various contexts to enhance problem-solving and analytical thinking in statistics.more
Skills you will learn include:
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Mean with Value Missing (Level 4)
This math topic focuses on calculating the missing value in a set of numbers to achieve a given mean. It includes multiple-choice questions that prompt users to select the correct missing number that results in the specified average. Each problem presents a different set of numbers and target mean, challenging users to apply their knowledge of mean calculation effectively. This set of problems is suitable for those looking to practice and enhance their skills in statistics, particularly in handling averages and missing data within data sets.more
Mean Change with Value Changed (Level 2)
This math topic focuses on understanding and calculating how changes to a single value within a numeric set impact the mean of that set. It involves problems where students must determine how to modify specific numbers to either increase or decrease the mean by a given amount. Each problem presents a set of numbers and specifies one number to be changed to achieve the desired average shift. The problems are crafted to enhance students' skills in manipulating and understanding mean in the context of basic statistics.more
Mean Change with Value Changed (Level 3)
This math topic focuses on problems related to changing a single data value in a set to achieve a specific change in the mean (average). By adjusting one value in the data set up or down, students practice calculating the resultant mean. The tasks are structured to deepen understanding of how individual values influence the overall average in statistical sets, part of an advanced unit on Probability and Statistics, dealing with mean, median, and mode. Each question presents a unique scenario testing students' ability to manipulate numerical data effectively.more
Mean Change with Value Removed (Level 2)
This math topic focuses on understanding how the mean of a set of numbers is affected when a specific value is removed. The problems present various sets of three numbers and describe a desired change in the mean. The task is to identify the number which, when removed, results in the stated change of mean. This involves critical thinking and computation related to the concept of averages (mean) in statistics, within the broader scope of mean, median, and mode at an advanced level.more
Mean Change with Value Changed (Level 5)
This math topic focuses on understanding the impact of changing one value in a set of numbers on the mean of that set. Specifically, it involves adjusting one specified number in a set to either increase or decrease the mean by a certain amount. The seven questions provided offer different scenarios with sets of five numbers each, where learners must determine the new value of a particular number to achieve the desired change in the mean. This topic is an advanced part of studying mean, median, and mode within the broader framework of probability and statistics.more
Mean Change with Value Changed (Level 4)
This math topic focuses on how changing a single value in a dataset affects the mean of the group. It explores various scenarios where students must determine what a specific number in a sequence should be changed to in order to achieve a designated increase or decrease in the mean. This set of problems is an advanced application of statistics within the broader unit of probability and statistics concerning mean, median, and mode. It tests the understanding of the relationship between individual data points and the overall statistical measure of the mean.more
Mean Change with Value Removed (Level 5)
This math topic explores advanced problems related to changes in the mean of a set of numbers when a specific value is removed. It is part of a broader unit on Probability and Statistics which focuses on Mean, Median, and Mode. Students are presented with sets of numbers and are asked to determine which specific number can be removed to achieve a given change in the mean, whether it be an increase, decrease, or no change. The sets vary in complexity and the changes in mean range from zero to other specified values. This skill helps deepen understanding of how averages are affected by data removal.more
Mean Change with Value Removed (Level 4)
This math topic involves solving problems related to the mean change when a certain value is removed from a set of numbers. Practitioners are expected to identify which number should be removed from a given list to achieve a specified change in the mean. The problems are structured with a series of sets, each with unique numbers and targets for the mean decrease, followed by multiple-choice options to determine which specific value, when removed, results in the target mean change. This topic forms part of a broader unit focused on advanced aspects of mean, median, and mode within probability and statistics.more
Mean with Value Missing (Level 3)
This math topic focuses on advanced skills in calculating the mean (average) when a value is missing from a dataset. Participants are tested on their ability to determine the missing integer that completes the given mean for a set of numbers. Questions provide multiple-choice answers, requiring analysis and computation to solve for the missing value, thereby reinforcing understanding of foundational statistical concepts within the context of mean calculation.more
Mean with Value Added (Level 3)
This math topic focuses on advanced exercises in understanding and calculating the mean (average) in statistics. Specifically, the problems require identifying what single value needs to be added to a given set of numbers to achieve a specified mean. Each question presents a different set of numbers and target means, challenging students to apply their knowledge of the mean formula dynamically across varying scenarios. This practice enhances students' abilities in statistical reasoning and manipulation of the mean.more
Mean with Value Removed (Level 3)
This math topic involves practicing how to adjust the collection of values in a data set to achieve a specified mean, specifically by identifying which single value needs to be removed. This skill is essential for understanding the impacts of data manipulation on statistical measures and is part of an advanced unit focusing on mean, median, and mode within probability and statistics. Each question provides a set of numbers and a target mean, and the learner must determine which specific number, once removed, results in the target mean. This involves both critical thinking and basic arithmetic operations.more
Mean with Value Changed (Level 5)
This math topic focuses on calculating the mean (average) of a set of numbers and understanding the impact of changing a specific value within the set to achieve a new mean. Each problem provides a list of numbers and tasks the learner with identifying the new value that one of the numbers can be changed to adjust the mean to a specified target. This skill is crucial for interpreting and manipulating data sets in statistics, enhancing problem-solving and analytical thinking in advanced probability and statistics contexts.more
Mean with Value Changed (Level 1)
This math topic focuses on calculating the mean and understanding its sensitivity to changes in data values. Each problem presents a set of numbers and requires changing one specific number to achieve a new mean. It emphasizes analytical skills in statistics, specifically within the broader categories of mean, median, and mode at an advanced level. Participants analyze how individual changes in data impact the overall average, fostering a deeper understanding of the concept of the arithmetic mean in datasets.more
Mean with Value Changed (Level 2)
This topic focuses on calculating the mean of a number set after altering one of its elements. It includes problems where a specific number in a list is changed to achieve a new, specified average. These adjustments test understanding of how changing one element influences the overall average, a concept fundamental in statistics. The problems provide multiple choices for what that one number could be changed to in order to reach the desired mean, enhancing problem-solving and analytical skills.more
Mean with Value Changed (Level 3)
This math topic focuses on advanced skills in statistics, particularly in calculating mean when a single value within a dataset is changed. It explores the effects of replacing numbers in various sets to achieve a specific target mean. Each problem presents a set of numbers and asks what a specific number can be changed to for the dataset to reach a desired mean. This set of problems is aimed at enhancing understanding of the mean and the sensitivity of data to changes in individual data points within the context of probability and statistics.more
Mean Change with Value Added (Level 3)
This math topic focuses on understanding changes in the mean of a set of numbers after adding a new value. It explores scenarios in which a single value is added to a group of existing numbers, resulting in a specified increase or decrease in the average (mean). Each problem provides a list of three initial numbers and a target mean change, requiring the solver to determine the additional number that, when added, achieves this new mean. The problems are set within a broader educational context of advanced probability and statistics, specifically focusing on calculating mean, median, and mode.more
Mean Change with Value Removed (Level 3)
This math topic focuses on calculating the effects of removing a single value from a set on the statistical mean. It falls under the advanced section of the broader unit on Probability and Statistics, specifically targeting skills related to Mean, Median, and Mode. Each problem provides a list of numbers and specifies whether the mean increases or decreases by a particular amount when a value is removed. The goal is for learners to identify which number, when removed, results in the specified change in the mean.more
Mean Change with Value Changed (Level 1)
This math topic revolves around calculating how the mean of a set of numbers changes when one value in the set is altered. The problems teach students to calculate the necessary change to achieve a specific mean shift, either an increase or a decrease, in the set. Each question provides a list of numbers and specifies one number to modify by a precise amount (either increasing or decreasing the mean), challenging students to determine the new value required. These exercises emphasize practical application and manipulation of means within basic datasets, enhancing students' understanding of statistics and mean calculations.more
Mean with Value Removed (Level 1)
This math topic focuses on practicing the calculation of the mean (average) in a set of numbers from which a single value has been removed. It challenges students to identify which specific number, when taken out from a set, will result in a given mean. The problems are structured in a multiple-choice format with sets of three numbers and a target mean for students to achieve by removing one of the numbers. This skill is essential for understanding statistical concepts and developing analytical skills in handling numerical data.more
Mean with Value Removed (Level 2)
This math topic focuses on calculating the mean of a set of numbers after removing a specific value to achieve a given mean. It includes several problems where students must determine which number from a list can be removed to result in the desired mean for the remaining numbers. This skill is categorized under advanced probability and statistics, specifically in the area of mean, median, and mode. The problems vary in difficulty and number set, providing students with diverse and challenging scenarios to develop their statistical reasoning and problem-solving skills.more
Mean Change with Value Added (Level 1)
This math topic focuses on understanding how adding a specific number to a set of data points affects the mean. The problems provide sets of numbers and specify how the mean should change (increase or decrease by a fixed amount). Students are required to determine which number, from a set of multiple choices, can be added to the original data so that the desired mean change occurs. This involves using concepts from probability and statistics, particularly focused on calculations involving the mean, and enhances relational understanding between data changes and average outcomes.more
Mean Change with Value Added (Level 2)
This math topic involves calculating the single number that can be added to a set of given numbers to achieve a specified change in their mean. Problems involve either an increase or decrease in the mean. Each problem provides a set of numbers and a target change in the mean, and students must select the correct number from multiple choices that will result in the described change in mean. This practice is part of a broader unit focused on advanced concepts of mean, median, and mode within the field of probability and statistics.more
Mean Change with Value Removed (Level 1)
This math topic focuses on understanding how the mean of a set of numbers changes when a single value is removed. It presents multiple problems where students need to figure out which number can be removed from a given set to achieve a specified change in the mean. This involves critical thinking and application of statistical concepts within the broader unit of Probability and Statistics, particularly focusing on Mean, Median, and Mode at an advanced level.more
Mean Change with Value Added (Level 5)
This math topic focuses on understanding how adding a specific value affects the mean of a set of numbers. Each problem presents a list of numbers and specifies how the mean should change (increase or decrease) when a new number is added. Students are tasked with identifying the correct number to add to achieve the specified change in the mean. This topic helps enhance skills in calculating means and understanding the relationship between individual data points and their average.more
Mean Change with Value Added (Level 4)
This math topic focuses on understanding how adding a specific value to a set of numbers affects the mean of that set. It belongs to the advanced section of a probability and statistics unit, specifically covering mean, median, and mode. The exercises present sets of numbers with a stated expected change in their mean—either an increase or decrease—and ask to determine the specific values that will achieve this result. The level of this math topic is more sophisticated, requiring analytical skills to manipulate averages and reflect on the impact of numerically altering a data set.more
Mean with Value Removed (Level 5)
This math topic focuses on calculating the mean of a set of numbers after removing one value to achieve a specific target mean. Through multiple problems, students are challenged to identify which number should be removed from a list so that the resulting set of numbers averages to a given mean. This exercise helps enhance understanding of how the mean is affected by changes in data sets and sharpens problem-solving skills related to statistics.more
Mean with Value Changed (Level 4)
This math topic focuses on advanced mean calculation in statistics. The problems involve adjusting one number in a given list to achieve a specified mean. This helps in practicing skills relating to statistics, specifically mean calculations, by determining how changes in data values affect the overall average. The topic is part of a broader unit on probability and statistics, emphasizing mean, median, and mode adjustments. Each question provides multiple choices, requiring learners to calculate and select the correct alteration to achieve the desired mean.more
Mean with Value Added (Level 5)
This math topic focuses on calculating the additional value needed to reach a specified mean for a set of numbers. Problems present sets of integers and a target mean. Students are asked to determine which number, among multiple choices, when added to the set, achieves the target average. This exercise is set to develop and enhance students' understanding of statistics, particularly their skills in calculating and conceptualizing mean values in practical scenarios. This topic is part of an advanced unit on probability and statistics covering mean, median, and mode.more
Mean with Value Missing (Level 5)
This math topic focuses on advanced problems related to calculating the mean of a set when a value is missing. Practicing skills include determining what number should replace the missing value (denoted as '?') in a series to achieve the specified average. Each problem provides a series of numbers with one value missing and a stated mean. Students must use their understanding of mean calculation to find the correct missing number from multiple choices provided. This involves multiplying, adding, and reasoning to back-calculate the missing value that results in the given mean.more
Mean with Value Removed (Level 4)
This math topic focuses on calculating the mean of a set of numbers after removing a specific value, which helps in understanding the impact of data removal on central tendency. It contains problems where students need to identify which value can be removed from a set of integers to achieve a pre-specified mean. This exercise is part of a broader unit on advanced Probability and Statistics, specifically dealing with mean, median, and mode. Each question presents a different set of numbers and a target mean, and the students must choose the correct number to remove from multiple choices provided.more
Mean with Value Added (Level 4)
This math topic focuses on calculating the necessary value to be added to sets of numbers to achieve a specified mean. Each problem is presented with a set of three initial numbers and a target mean. Students are required to determine which additional value, offered in multiple-choice format, when added to the set will result in the target mean. This advanced level of problems involves practical application of statistical concepts, specifically centered around the mean (average) calculation in the context of probabilities and statistics.more
Mean with Value Added (Level 2)
This topic focuses on advanced problems in statistics, specifically calculating additional values required to achieve a specified mean. Problems consist of finding a single number that, when added to a given set of numbers, results in a predetermined mean. Various sets of numbers and target means are provided for practice, and multiple potential answers are offered in a multiple-choice format. This forms part of a broader set of problems dealing with mean, median, and mode, emphasizing statistical calculations and comprehension.more
Mean with Value Added (Level 1)
This math topic focuses on calculating the mean with an additional value. It involves determining a single number that can be added to a set of existing numbers to achieve a specified mean. The problems present sets of numbers and ask for the required number that, when added, results in a given mean. Various sets and target means are used across the questions to offer a range of scenarios that test understanding of averaging and basic arithmetic operations. This enhances problem-solving skills related to statistics, specifically within the context of calculating means.more
Mean with Value Missing (Level 2)
This math topic focuses on calculating the missing number that ensures a specified average (mean) in a set of numbers. Each problem presents a small set of numbers where one value is missing, and the goal is to determine what that missing number must be to achieve the stated mean. The skill practiced here is fundamental to understanding averages and is crucial for advanced studies in statistics and probability. The problems progress through various difficulty levels and scenarios, reinforcing the ability to manipulate and calculate numerical data effectively.more
Mean with Value Missing (Level 1)
This math topic focuses on finding the missing value in a set of numbers to achieve a specified mean. It enhances skills in understanding and calculating the mean (average) of a dataset, which is crucial in statistics. This involves adding known numbers, determining the sum needed to reach the targeted mean with the given number of entries, and solving for the unknown. The problems are presented in a multiple-choice format with various options, challenging the student's ability to apply concepts of averages in practical scenarios. This is part of an advanced unit on mean, median, and mode within probability and statistics.more