Grade 9

72 Units, 212 Skills

Geometry - Angles and Transformations - Practice

Unit 1

Fraction Multiplication - Practice

Unit 2

Exponents - Advanced

Unit 3

Order of Operations - Advanced

Unit 4

Probability and Counting - Single Event - 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

Decimal Division - Advanced

Unit 14

Fraction Addition and Subtraction, Mixed - Practice

Unit 15

Exponents - Multiplication and Division - Advanced

Unit 16

Geometry - Circle Partial Area and Circumference - Intro

Unit 17

Patterning - Number Patterns Advanced

Unit 18

Measurement - Units Advanced - Metric

Unit 19

Geometry - Surface Area of 3D Shapes - Practice

Unit 20

Factoring and Greatest Common Factor - Advanced

Unit 21

Algebra Manipulating Variables - Intro

Unit 22

Geometry - Cylinders - Intro

Unit 23

Probability and Statistics - Counting and Probability Practice

Unit 24

Percentages - Advanced

Unit 25

Measurement - Unit Conversion Intro - Metric

Unit 26

Speed, Distance, and Time - Advanced

Unit 27

Ratios of Lengths - Intro

Unit 28

Cartesian Grid Geometry Logic - Practice

Unit 29

Percents and Simple Interest - Practice

Unit 30

Squares and Square Roots - Advanced

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

Pythagorean Triples - Intro

Unit 43

Cartesian Grid Distance - Intro

Unit 44

Probability and Statistics - Factorial Form Intro

Unit 45

Exponents - Power Law - Practice

Unit 46

Pythagorean Theorem with Decimals - Intro

Unit 47

Algebra Manipulating Variables - Practice

Unit 48

Exponents - Negative Bases and Exponents - Intro

Unit 49

Exponents - Fractional Bases and Exponents - Intro

Unit 50

Algebra Systems of Equations - Intro

Unit 51

Measurement - Units Large/Small Intro - Metric

Unit 52

Pythagoras - Practice

Unit 53

Factoring, Multiplication, Division, Fractions - Advanced

Unit 54

Slopes and Parallels - Intro

Unit 55

Measurement Conversion and Map Scale - Intro - Metric

Unit 56

Probability - Set Operations - Intro

Unit 57

Patterns and Sums - Intro

Unit 58

Slopes and Perpendiculars - Intro

Unit 59

Geometry - Circle Area, Sectors and Donuts - Intro

Unit 60

Fraction Multiplication - Advanced

Unit 61

Measurement - Unit Conversion Practice - Metric

Unit 62

Pythagorean Theorem in 3D - Intro

Unit 63

Fraction Addition and Subtraction, Mixed - Advanced

Unit 64

Probability and Counting - Multiple Events - Intro

Unit 65

Ratios of Lengths - Practice

Unit 66

Radicals - Simplifying Intro

Unit 67

Fraction Division - Practice

Unit 68

Scientific Notation - Multiplication and Division - Practice

Unit 69

Geometry - Intermediate - Intro

Unit 70

Line Equations and Graphing - Intro

Unit 71

Probability and Statistics - Probability with Factorials Intro

Unit 72

Probability and Statistics - Factorial Form Intro

Unit 45

This math unit focuses on developing student proficiency with factorials, starting from the basics and progressing to more advanced applications within probability and combinatorial contexts. Initially, the unit introduces students to converting factorials into multiplication strings and calculating factorial values. Students are then guided through recognizing and converting multiplication strings back into factorials, an essential skill for understanding permutations and combinations. Further into the unit, more complex operations involving factorials are taught, such as simplifying factorial expressions through division and understanding the equivalent values of factorial divisions. By converting factorial multiplication strings to divisions, students enhance their ability to manipulate and rationalize factorial expressions crucial for accurate probability computations. Towards the later part of the unit, students engage with a variety of factorial calculations, including those with simpler forms, and gradually move to manipulating expressions involving brackets and mixed operations. This progression sharpens their skills in handling complex factorial-based calculations, underpinning higher-level studies in statistics and probability.Skills you will learn include:

  • Factorial form
  • Calculating factorials
  • Factorial multiplication
  • Factorial division
  • Bracketed factorials
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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 - Factorial Form Intro.

This topic focuses on practicing factorial division in the context of probability and statistics. The problems involve finding equivalent values for expressions with factorials in a fraction format (e.g., 5! over 2!). It covers simplifying factorial expressions by calculating the result of the division between two factorials, enhancing skills necessary for initial factorial concepts within the larger unit on probability and statistics. Each question provides multiple-choice answers, requiring the learner to select the correct simplification of the given factorial division expression.

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This topic explores the conversion of simple multiplication sequences into their factorial equivalents, rooted in concepts from advanced probability and counting. Users are prompted to match multiplication strings, like "6 × 5 × 4 × 3 × 2," with the correct factorial notation (e.g., "6!"). Each problem provides multiple choices, represented by different factorial notations. This trains skills in recognizing how factorials are related to products of sequential integers, important for understanding permutations and combinations in probability.

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This topic focuses on the mathematical skill of simplifying factorial expressions, specifically through converting factorial division into a multiplication string. It is part of a broader educational unit on probability and statistics, emphasizing counting and probability principles. The problems present various factorial division questions, where students must select the correct simplified multiplication form from multiple options presented with each question. This helps students understand and practice the fundamentals of factorial operations and their implications in probability calculations.

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This math topic explores the conversion from string multiplications to factorial division expressions, strengthening skills in manipulating factorials and understanding their relationships with basic multiplication. It includes problems where learners select equivalents of given multiplications expressed in factorials, such as translating "5 times 4 times 3" into an appropriate fraction involving factorial notation. The focus is on recognizing and simplifying factorial expressions, pivotal for counting and probability calculus within the broader scope of probability and statistics. The problems emphasize rationalizing factorials, enhancing conceptual grasp and accuracy in handling factorial-based calculations.

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This math topic focuses on converting factorials into their respective multiplication strings, a specific skill within the broader context of advanced probability and counting for single events. This conversion is crucial for students to understand the fundamental operations and implications within factorial calculations, helping to deepen their comprehension of combinatorial reasoning and probability assessments. This skill is being taught as part of an advanced learning unit on counting techniques needed for complex probability scenarios.

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This math topic focuses on calculating factorial expressions, specifically those where a single factorial is divided by a factorial with a difference in its argument (symbolized as "n! over (n-r)!"). The problems are designed to test understanding of how factorial calculations interact within the format of division, particularly in scenarios relevant to probability and statistics. Each question presents a factorial divided by another factorial with a subtracted value inside the bracket, challenging students to apply factorial properties and arithmetic operations to find the correct value.

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This math topic focuses on calculating factorials, specifically involving their values to solve problems (Level 1 difficulty). It forms a part of a more extensive study concerning probability and counting strategies related to single events at an advanced level. This skill is essential for students aiming to deepen their understanding of probability and counting techniques.

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This math topic focuses on calculating factorial expressions in the context of probability and statistics. It primarily deals with solving expressions of the form 1 over the product of factorials and simple arithmetic operations within factorials. The problems involve evaluations such as \( \frac{1}{{n! \times (m-k)!}} \), where n, m, and k are integers. This provides foundational understanding and practice in manipulating factorials, an integral part of solving more complex probability and statistical problems. Each question presents multiple-choice answers, aiding in reinforcing comprehension and calculation skills related to factorial manipulations.

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This math topic focuses on the calculation of factorial expressions through simple multiplication and is designed for an introductory level in probability and statistics. The problems are structured around determining the values of various expressions involving factorial calculations, such as "2! times 5!" or "3! times 4!". Each question offers multiple choice answers, enhancing understanding of factorials in the context of elementary mathematical operations commonly used in statistics.

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This math topic focuses on practicing the calculation of factorial expressions, specifically those containing subtraction operations within the factorial notation. It is intended to help learners understand and solve factorial forms as part of an introduction to probability and statistics. The problems range from basic expressions like calculating the factorial of (3-2) to more advanced ones involving expressions such as (6-2). Each question presents multiple choices for the answers, enhancing the students' ability to solve and understand factorial operations in different scenarios.

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This math topic focuses on calculating factorial expressions in the form of 1 over a factorial, such as \( \frac{1}{n!} \). It is a basic introduction to understanding factorial forms within the broader context of probability and statistics. The topic includes problems where students must evaluate factorial expressions for values like \( \frac{1}{3!} \), \( \frac{1}{4!} \), \( \frac{1}{2!} \), and \( \frac{1}{5!} \), choosing the correct value from multiple options. This is essential for understanding more complex problems in probability and combinatorial calculations.

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This math topic focuses on computing factorial expressions, specifically those in the form of "1 over a bracketed term factorial." It is an introductory topic within the broader unit on Probability and Statistics related to Factorials. The problems involve evaluating expressions where the factorial notation, denoted as "!", is used after subtracting two numbers within a bracket. The students are presented with multiple-choice questions where they must select the correct value of the factorial expression. These exercises help in understanding the concept of factorials and their computation, which are important in probability calculations and combinatorics.

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This math topic focuses on practicing the calculation of factorial expressions involving division and multiplication. Questions present factorial expressions simplifying to single number outcomes or fractions. These problems help students understand and manipulate factorials, a key concept in probability and statistics, as part of a broader introduction to factorial forms. Each problem provides multiple choice answers, testing the student's ability to compute and simplify expressions containing factorials.

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This math topic focuses on practicing the calculation of factorial expressions. The problems involve evaluating the value of factorial expressions formatted as fractions, where the numerator is 1 and the denominator is a product of factorials. These exercises are aimed at enhancing understanding of factorial operations, fundamental in the study of probability and statistics. Additionally, the problems are structured as multiple-choice questions, encouraging learners to calculate exact values and choose the correct option among several provided answers. This theme is part of a broader unit introducing factorial forms in probability and statistics.

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This math topic focuses on practicing the calculation of factorial expressions combined with bracketed multiplication. Specifically, students solve problems involving multiplying factorials by the result of a subtraction operation within brackets. This skill facilitates understanding of fundamental concepts in probability and statistics, and is a part of an introductory unit aimed at familiarizing students with factorial forms used in these fields. The problems cover basic factorial operations and incorporate integer subtractions to challenge the students' ability to integrate multiple mathematical concepts.

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This math topic focuses on solving factorial expressions, particularly utilizing simple division. It's an introductory level topic positioned within a larger unit on probability and statistics, designed to enhance understanding of factorial forms. The problems prompt learners to calculate the values of various factorial expressions and choose the correct result from a list of options. The incorporated skills are crucial for building a foundation in understanding permutations and combinations in probability, and they apply basic arithmetic and algebraic manipulation of factorial expressions.

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This math topic focuses on practicing the calculation of factorial expressions. It is designed for beginners and is part of a unit on Probability and Statistics, introducing the concepts of factorials. The problems require determining the value of factorial expressions for different numbers (e.g., `3!`, `5!`, `4!`, and `2!`). Each question provides multiple choice answers, allowing learners to select the correct value of the factorial expression presented. This helps to solidify understanding of how factorial values are computed in mathematics.

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This math topic focuses on evaluating factorial expressions, specifically single factorials over bracketed multiplications involving subtraction within the factorial terms. It is part of an introductory unit on probability and statistics that teaches the computations related to factorial forms, fundamental for understanding permutations and combinations in mathematics. Each question presents different configurations of factorials divided by the product of additional factorials, requiring the solutions to involve calculation rules and simplifications pertaining to factorial mathematics.

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