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Grade 9

68 Units, 194 Skills

Geometry - Angles and Transformations - Practice

Unit 1

Measurement - Units Advanced - Metric

Unit 2

Fraction Multiplication - Practice

Unit 3

Exponents - Advanced

Unit 4

Order of Operations - Advanced

Unit 5

Probability and Statistics - Counting and Probability Foundations

Unit 6

Fraction Division - Intro

Unit 7

Geometry - Circle Area and Circumference - Practice

Unit 8

Geometry - Isosceles and Equilateral Triangles

Unit 9

Digits and Divisibility - Practice

Unit 10

Decimal Multiplication - Advanced

Unit 11

Geometry - Intersecting, Parallel, and Perpendicular Lines

Unit 12

Fraction Addition and Subtraction - Advanced

Unit 13

Squares and Square Roots - Advanced

Unit 14

Decimal Division - Advanced

Unit 15

Fraction Addition and Subtraction, Mixed - Practice

Unit 16

Exponents - Multiplication and Division - Advanced

Unit 17

Unit Conversion - Intro

Unit 18

Geometry - Circle Area, Sectors and Donuts - Intro

Unit 19

Patterning - Number Patterns Advanced

Unit 20

Measurement - Units Large/Small Practice - Metric

Unit 21

Geometry - Surface Area of 3D Shapes - Practice

Unit 22

Factoring and Greatest Common Factor - Advanced

Unit 23

Algebra Manipulating Variables - Intro

Unit 24

+2

Geometry - Cylinders - Intro

Unit 25

Probability and Statistics - Counting and Probability Practice

Unit 26

Percentages - Advanced

Unit 27

Measurement - Unit Conversion (Very Large and Small) Intro - Metric

Unit 28

Speed, Distance, and Time - Advanced

Unit 29

Ratios of Lengths - Intro

Unit 30

Cartesian Grid Geometry Logic - Practice

Unit 31

Area and Perimeter Logic - Practice

Unit 32

Slope - Intro

Unit 33

Algebra Basic Concepts - Advanced

Unit 34

Factoring and Lowest Common Multiple - Advanced

Unit 35

Probability and Statistics - Mean, Median, and Mode - Advanced

Unit 36

Geometry - Volume Logic with 3D Shapes - Intro

Unit 37

Scientific Notation - Multiplication and Division - Intro

Unit 38

Pythagoras - Intro

Unit 39

Negative Integers - Practice

Unit 40

Speed, Distance, and Time Logic Challenges - Intro

Unit 41

Factoring, Multiplication, Division, Fractions - Practice

Unit 42

Cartesian Grid Distance - Intro

Unit 43

Probability and Statistics - Factorial Form Intro

Unit 44

Pythagorean Triples - Intro

Unit 45

Exponents - Power Law - Practice

Unit 46

Algebra Manipulating Variables - Practice

Unit 47

Exponents - Negative Bases and Exponents - Intro

Unit 48

Exponents - Fractional Bases and Exponents - Intro

Unit 49

Algebra Systems of Equations - Intro

Unit 50

Measurement - Units Large/Small Advanced - Metric

Unit 51

Pythagoras - Practice

Unit 52

Factoring, Multiplication, Division, Fractions - Advanced

Unit 53

Probability - Set Operations - Intro

Unit 54

Patterns and Sums - Intro

Unit 55

Fraction Multiplication - Advanced

Unit 56

Measurement - Unit Conversion (Very Large and Small) Practice - Metric

Unit 57

Pythagorean Theorem in 3D - Intro

Unit 58

Fraction Addition and Subtraction, Mixed - Advanced

Unit 59

Probability and Counting - Multiple Events - Intro

Unit 60

Ratios of Lengths - Practice

Unit 61

Radicals - Simplifying Intro

Unit 62

Fraction Division - Practice

Unit 63

Scientific Notation - Multiplication and Division - Practice

Unit 64

Geometry - Intermediate - Intro

Unit 65

Line Equations and Graphing - Intro

Unit 66

Scientific Notation Units - Intro

Unit 67

Probability and Statistics - Probability with Factorials Intro

Unit 68

Probability and Statistics - Mean, Median, and Mode - Advanced

Unit 36

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.

Skills you will learn include:

Foundational Units
Builds Towards

Activity & Progress

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Learning through Game Play

At Mobius we have lots of great (and free) resources to help you learn math. To keep kids engaged, there’s nothing better than a math-powered video game! Try out a Mobius game mapped to Probability and Statistics - Mean, Median, and Mode - Advanced.

This math topic focuses on understanding how adding a specific value affects the mean of a set of numbers. Each problem presents...

This math topic focuses on finding the missing value in a set of numbers to achieve a specified mean. It enhances skills...

This math topic focuses on calculating the missing number that ensures a specified average (mean) in a set of numbers. Each...

This math topic focuses on calculating the mean with an additional value. It involves determining a single number that can...

This topic focuses on advanced problems in statistics, specifically calculating additional values required to achieve a specified...

This math topic focuses on practicing the calculation of the mean (average) in a set of numbers from which a single value...

This math topic focuses on calculating the mean of a set of numbers after removing a specific value to achieve a given mean....

This math topic focuses on understanding how adding a specific number to a set of data points affects the mean. The problems...

This math topic involves calculating the single number that can be added to a set of given numbers to achieve a specified...

This math topic focuses on understanding how the mean of a set of numbers changes when a single value is removed. It presents...

This math topic focuses on understanding how the mean of a set of numbers is affected when a specific value is removed. The...

This math topic focuses on advanced skills in calculating the mean (average) when a value is missing from a dataset. Participants...

This math topic focuses on advanced exercises in understanding and calculating the mean (average) in statistics. Specifically,...

This math topic involves practicing how to adjust the collection of values in a data set to achieve a specified mean, specifically...

This math topic focuses on calculating the mean and understanding its sensitivity to changes in data values. Each problem...

This topic focuses on calculating the mean of a number set after altering one of its elements. It includes problems where...

This math topic focuses on advanced skills in statistics, particularly in calculating mean when a single value within a dataset...

This math topic focuses on understanding changes in the mean of a set of numbers after adding a new value. It explores scenarios...

This math topic focuses on calculating the effects of removing a single value from a set on the statistical mean. It falls...

This math topic focuses on problems related to changing a single data value in a set to achieve a specific change in the...

This math topic focuses on understanding and calculating how changes to a single value within a numeric set impact the mean...

This math topic revolves around calculating how the mean of a set of numbers changes when one value in the set is altered....

This math topic focuses on calculating the missing value in a set of numbers to achieve a given mean. It includes multiple-choice...

This math topic focuses on calculating the necessary value to be added to sets of numbers to achieve a specified mean. Each...

This math topic focuses on calculating the mean of a set of numbers after removing a specific value, which helps in understanding...

This math topic focuses on advanced problems related to calculating the mean of a set when a value is missing. Practicing...

This math topic focuses on calculating the additional value needed to reach a specified mean for a set of numbers. Problems...

This math topic focuses on advanced mean calculation in statistics. The problems involve adjusting one number in a given...

This math topic focuses on calculating the mean of a set of numbers after removing one value to achieve a specific target...

This math topic focuses on understanding how adding a specific value to a set of numbers affects the mean of that set. It...

This math topic focuses on calculating the mean (average) of a set of numbers and understanding the impact of changing a...

This math topic involves solving problems related to the mean change when a certain value is removed from a set of numbers....

This math topic explores advanced problems related to changes in the mean of a set of numbers when a specific value is removed....

This math topic focuses on how changing a single value in a dataset affects the mean of the group. It explores various scenarios...

This math topic focuses on understanding the impact of changing one value in a set of numbers on the mean of that set. Specifically,...