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

Exponents - Negative Bases and Exponents - Intro

Unit 49

This math unit progresses from fundamental to advanced aspects of exponentiation and integer multiplication concepts. Initially, students practice the basics of multiplying negative integers, starting with simple negative times positive integer equations and advancing to negative times negative integer calculations. The unit then progresses to the study of exponents, beginning with squaring integers and gradually moving toward complex scenarios involving negative bases and exponents. Students learn how the number of negative multiples affects the product, exploring exponent rules as they apply to negative bases raised to various powers, observing changes in sign and magnitude based on whether the exponent is odd or even. Further complexity is added as students delve into working with negative exponents and evaluating expressions where bases are negative numbers or unit fractions raised to the power of -1, emphasizing reciprocal relationships and the need for careful handling of negative exponents and fractional bases.Skills you will learn include:

  • Multiplication of negatives
  • Negative bases
  • Exponent division
  • Subtraction of powers
  • Negative exponents
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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 Exponents - Negative Bases and Exponents - Intro.

Negative Exponents (Level 1)

This math topic focuses on practicing calculations with negative exponents. It includes a series of problems where numbers are raised to negative powers, such as \(9^{-2}\), \(10^{-2}\), and others up to \(4^{-2}\). Each problem presents a base number to be raised to a negative exponent and multiple answer choices, each given as fractions. The objective is to select the correct fraction that represents the value of the expression with the negative exponent.

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Negative Base Expanded (Level 1)

This math topic explores the concept of negative base exponents, focusing specifically on the effect of multiplying negative numbers by themselves. Each problem requires finding the square of a negative integer and choosing the correct answer from multiple options. The numbers involved in the calculations range from -2 to -10. This emphasizes understanding the important rule that the square of a negative number results in a positive product, honing advanced exponentiation skills.

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Negative Base (Level 2)

This math topic focuses on computing powers of negative bases, advancing student understanding of exponentiation rules. Students practice calculating the result when negative numbers are raised to integer exponents, assessing how signs and magnitude change based on the parity of the exponent. Answers are provided in multiple-choice format, enhancing skills in evaluating expressions involving negative exponents and ensuring accuracy in solving them.

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Negative Base (Level 1)

This math topic involves solving problems related to calculating the exponentiation of negative base numbers. The problems focus on raising negative numbers to the power of two and determining their values. Each problem presents a negative base, like -9 or -7, raised to the power of two, along with multiple choice answers for students to select from. This topic helps students understand the rules of exponents, specifically how squaring a negative number results in a positive product. Through these exercises, learners can enhance their skills in working with powers of negative numbers.

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Negative Base Expanded (Level 2)

This math topic focuses on handling exponents with negative bases and understanding the effects of raising negative numbers to different powers. Specifically, it challenges students to calculate the results of negative numbers multiplied by themselves several times. The problems involve assessing various integer powers of negative numbers, illustrating how exponentiation can change the sign and magnitude of the outcomes based on whether the exponent is odd or even. The topic is part of an advanced unit on exponents, designed to deepen understanding of properties of powers and exponentiation in mathematics.

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This math topic focuses on the practice of multiplying negative integers, introducing foundational skills in dealing with negative numbers. The problems range from basic single-digit negative times positive integer equations to more involved negative times negative integer equations. Each problem encourages learners to understand and calculate the product of integers involving negative values, offering multiple choice answers to allow learners to test and validate their understanding of the multiplication of negative integers.

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Negative One Exponents with Unit Fractional Base (Level 1)

This topic covers practicing negative one exponents with unit fractional bases, a part of advanced exponents. The problems involve calculating the value of fractions such as \( \frac{1}{2}, \frac{1}{3}, \frac{1}{11}, \frac{1}{5},\) and \( \frac{1}{7} \) when raised to the power of -1, exploring the reciprocal relationship represented by the negative exponent. Students are provided with multiple choice answers to help reinforce their understanding of the mathematical concepts.

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Negative One Exponents with Unit Fractional Base (Level 2)

This math topic focuses on evaluating expressions with unit fractional bases raised to the power of negative one. Each problem presents a fraction with a denominator ranging from 2 to 11, raised to the exponent of -1. The learners are required to apply knowledge of exponents and fractions to simplify these expressions. Multiple choice answers accompanying each problem propose various simplifications, including integer, fractional, undefined (division by zero), and incorrect negative values, challenging the learner to correctly apply exponent rules and fraction reciprocation.

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Negative One Exponents with Fractional Base (Level 1)

This math topic focuses on the properties of exponents, specifically calculating negative one exponents with fractional bases. The problems require solving expressions where fractions are raised to the power of negative one, which involves inverting the fraction (reciprocal). Each question involves a different fractional base raised to the negative one power, and multiple choice answers are provided for students to select the correct reciprocal. This involves understanding and applying the rule that any nonzero number raised to the power of -1 is the reciprocal of that number.

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This math topic involves practicing negative integer multiplication and exploring the impacts of multiplying multiple instances of the same negative integer. The exercises deepen understanding of how exponent rules apply to negative bases, specifically showing the effect of the number of times a negative integer is multiplied by itself. The problems focus on calculations involving products of negative integers like -4, -3, -2, and -1 raised to various powers, with results alternating between positive and negative values depending on whether the power is even or odd. The exercises are designed to strengthen skills in handling exponents and integer operations.

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This math topic focuses on practicing multiplication involving negative integers, specifically with multiple instances of the same number, which is -1. It includes problems that teach and reinforce understanding of how odd and even numbers of negative ones multiply out, and the property that multiplying -1 by itself results in 1. This is part of a larger unit on exponents, particularly focusing on negative bases and exponents.

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Calculation (Level 1)

This math topic focuses on calculating exponents, specifically squaring different integers, as part of fundamental algebra concepts. Each question presents a number raised to the power of two and asks to choose the correct answer from multiple options. The numbers featured in the problems range from smaller integers like 2, up to larger ones like 10, helping learners practice and solidify their understanding of squaring numbers.

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Negative One Exponents with Fractional Base (Level 2)

This math topic focuses on practicing negative one exponents with fractional bases. The problems specifically challenge students to compute the result of raising a fraction to the power of negative one. Each question presents a different fractional base and multiple choice answers, requiring students to have a firm understanding of reciprocal operations and exponent rules, particularly within the context of negative exponents. This is a component of a broader unit on advanced exponents.

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