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

Geometry - Intersecting, Parallel, and Perpendicular Lines

Unit 39

This math unit starts with basic geometry concepts, initially focusing on the estimation and calculation of angles formed by various lines. It progresses from estimating angles in reverse and calculating complementary angles that sum up to 90 or 180 degrees, to more complex problems involving identification and calculations related to intersecting, parallel, and perpendicular lines. As the unit advances, students are tasked with identifying relationships between lines and solving for unknown angles in geometrical setups involving crossing lines, both parallel and perpendicular. They refine their understanding of angles in different contexts, including naming and calculating degrees in triangles and other formations. The unit also helps students apply these skills in practical scenarios involving diagrams, fostering a deeper understanding of geometry and its applications.more

Skills you will learn include:

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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 Geometry - Intersecting, Parallel, and Perpendicular Lines.

This math topic focuses on enhancing students' abilities to identify the relationships between lines: whether they are parallel, perpendicular, or intersecting. It appears to be aimed at introducing beginners to basic geometric concepts. Each question presents different sets of lines, asking students to classify their relationship based on visual aids represented by images. This set of problems is part of an introductory unit on geometry basics, catering to initial learning stages in geometry.more

Naming - Degrees to ABC Form (Simple) on a Triangle (Level 1)

This math topic focuses on the practice of naming angles in a triangle from degrees to ABC form. It involves identifying specific angles within various triangles, given their degree measure, and naming them according to the correct geometry notation. The angles are part of intersecting, parallel, and perpendicular lines. This topic is also a part of a broader unit on geometry.more

Naming - Diagram to ABC Form on a Triangle (Level 1)

This topic includes exercises on identifying and naming angles in a triangle. It also covers elements of Geometry specifically focusing on intersecting, parallel, and perpendicular lines. The student is asked to name the angle marked in the provided diagrams according to the proper nomenclature.more

Naming - Diagram to ABC Form (Simple) on a Triangle (Level 1)

This math topic focuses on identifying and naming angles within a triangle, and the form of naming angles using the ABC method. It is part of a larger exploration of geometry specifically intersecting, parallel, and perpendicular lines. Through several example problems, students are asked to identify the correct name for a given angle in diagrams of various triangles.more

Naming - Diagram to ABC Form on an Angle (Level 1)

This math topic focuses on geometry, particularly on identifying and naming angles based on diagrams. The skills practiced include understanding angles, the use of the ABC naming convention to identify a specific angle in a diagram, and differentiating between intersecting, parallel, and perpendicular lines. The topic clearly embeds these concepts in a series of practical application questions.more

Naming - Diagram to ABC Form (Simple) on an Angle (Level 1)

This math topic covers the skill of identifying and naming angles using the ABC naming convention. It relates to the broader topics of geometry, specifically intersecting, parallel, and perpendicular lines. The learners are provided with diagrammatic representations of different angles and are asked to determine the name of the angle under the ABC naming format.more

This math topic focuses on solving angles formed by crossing perpendicular lines, a key concept in geometry involving intersecting, parallel, and perpendicular lines. It includes several problems where students are presented with diagrams of intersecting lines and are asked to determine the measures of specified angles, typically labeled as angle 'T,' 'S,' 'Q,' or 'R.' This reinforces students' understanding of the properties of perpendicular lines and intersecting lines in forming various angles. Each question provides multiple-choice answers, enhancing students' problem-solving skills in evaluating geometrical figures.more

This math topic focuses on understanding the properties of angles formed by crossing perpendicular lines, within the broader scope of intersecting, parallel, and perpendicular lines in geometry. The questions require identifying specific angles from diagrammatic representations, exploring different possibilities like 90 degrees for right angles or various other measures based on geometric principles. Each question presents multiple-choice answers, aiding in deducing and reinforcing angle properties related to perpendicular line intersections.more

This math topic focuses on solving angles when dealing with crossing parallel lines, a sub-concept within the broader geometry category concerning intersecting, parallel, and perpendicular lines. It consists of seven questions, each presenting a scenario involving lines and angles. The learners are required to identify the measure of specific angles, with multiple choice answers provided for each query. The objective is to reinforce the understanding of geometric properties of parallel lines and the angles formed when traversed by a transversal line.more

This math topic focuses on understanding and solving angle measurements where lines cross parallel lines, encompassing a series of problems to determine the angles formed by intersecting, parallel, and perpendicular lines. Each problem provides a diagram of lines with labeled angles and multiple choice answers for determining the measurement of specific angles (denoted as T, R, or S). This set of problems is part of introductory geometry and aims to develop skills in identifying and calculating angles in various line configurations.more

This math topic focuses on the geometry of lines, specifically working with crossing or intersecting lines to determine unknown angles. It extends to problems involving perpendicular and parallel lines. Students are shown diagrams with angles and lines labeled, and they must deduce the value of given angles from multiple choice options. Through these problems, they practice identifying and solving for angles formed by intersecting, parallel, and perpendicular lines, contributing to their understanding of fundamental geometric principles.more

This math topic focuses on the geometry of lines, specifically on solving angles formed by crossing lines. This includes calculating angles when lines intersect, and understanding the properties of parallel and perpendicular lines. The practice problems presented aim to help learners identify and calculate specific angles in various geometric configurations. Each problem offers a scenario with a diagram and multiple-choice answers, enhancing skills in geometrical reasoning and angle measurement. This is part of a broader unit on intersecting, parallel, and perpendicular lines, promoting a deeper understanding of basic geometric principles.more

Estimating (degrees) (Level 3)

This math topic focuses on estimating angles in degrees. The topic is part of a larger focus on geometry, specifically intersecting, parallel, and perpendicular lines. The exercises require estimations of angles shown in diagrams, with possible answers provided as multiple degrees options. This topic includes several exercise examples that vary the angles for estimation, thereby offering a diverse range of angles for the student to practice estimating.more

Remainder of 180 Degree Angle (Level 4)

This math topic focuses on calculating the complementary angles to make a total of 180 degrees, which is pertinent to the study of intersecting, parallel, and perpendicular lines in geometry. Students are given one angle and must determine the measure of the other angle to complete 180 degrees. The topic features multiple-choice questions where the possible answers are listed, and learners must choose the correct one that sums up to 180 degrees with the given angle. more

Remainder of 180 Degree Angle (Level 3)

This math topic focuses on understanding and computing the complementary angles that sum up to 180 degrees. It is specifically tailored towards working with various angle pairs, exploring how different angles combine to make a straight angle (180°). Each problem presents one angle, and the task is to find its complement to reach 180 degrees. It is structured to enhance proficiency in basic geometry concepts, specifically dealing with intersecting, parallel, and perpendicular lines through practical angle calculations.more

Remainder of 180 Degree Angle (Level 2)

This math topic focuses on calculating the complementary angles that sum up to 180 degrees. Each question presents a scenario where one angle is given, and the task is to determine the degrees of the other angle so that together they form a straight angle (180 degrees). This practice is part of a larger unit on geometry, specifically dealing with intersecting, parallel, and perpendicular lines. Understanding how to find complementary angles is essential in solving problems related to these geometric concepts.more

Naming - Degrees to ABC Form on a Triangle (Level 1)

This math topic involves practicing naming angles and converting degrees to ABC form within a triangle. It includes intermediate level geometry and introduces the concept of identifying angles of specific measurements such as 60°, 50°, and 70°. The learners will recognize and name these angles using a three-letter form like RSQ, SQR, SRQ, etc. Multiple-choice-style answers are provided for practice.more

Remainder of 90 Degree Angle (Level 4)

This math topic focuses on calculating the remainder of a 90-degree angle when part of the angle is already given. Each question presents a scenario where a 90-degree angle is split into two parts, with one part known, and students are required to determine the degree measurement of the unknown part. The problems enhance skills in basic angle subtraction and understanding of complementary angles in the context of intersecting, parallel, and perpendicular lines in geometry. Students must select the correct answer from multiple choices, boosting their proficiency in basic arithmetic and geometric concepts.more

Remainder of 90 Degree Angle (Level 3)

This math topic focuses on finding the complementary angles that together form a 90-degree angle, helping to build students' understanding of basic geometry concepts. The questions present one angle and challenge the student to calculate the measure of the other to sum up to 90 degrees. This involves skills in subtraction related to angle measures. Geared towards fostering a solid grounding in geometry, particularly with intersecting, parallel, and perpendicular lines, this subject is essential for understanding broader geometrical relationships and angle properties.more

Remainder of 90 Degree Angle (Level 2)

This math topic focuses on understanding how to find the measure of an angle that complements another given angle to make a total of 90 degrees. It is part of a broader unit on geometry that involves studying intersecting, parallel, and perpendicular lines. The questions present various scenarios where an angle less than 90 degrees is given, and the student is asked to find the measure of the remaining angle to complete the 90-degree angle. Students are required to perform subtraction from 90 degrees to solve the problems, thereby enhancing their skills in basic angle arithmetic and their understanding of complementary angles.more

Naming - ABC Form to Degrees on a Triangle (Level 1)

This math topic focuses on determining the degree measurements of angles within triangles. Students are given images of triangles with labeled points, and are tasked with finding the amounts of particular angles, represented in the ABC form. The problems present students with angles ranging from 50 to 70 degrees, providing multiple choice responses. This is part of a larger unit on introductory intermediate geometry.more

Estimating - Reversed (Level 3)

This math topic is primarily centered on the estimation of angles in a reversed manner, which is a part of a broader unit on Geometry, specifically focusing on intersecting, parallel, and perpendicular lines. Each question prompts the learner to find the angle closest to given degrees ranging from 30 degrees to 135 degrees. The topic thus emphasizes measuring angles, estimating degrees, and understanding the properties of various lines.more

This math topic focuses on practicing the identification of geometric figures like lines, line segments, and rays, foundational elements of geometry. Each problem displays a distinct visual (represented through an image) and asks learners to determine whether the geometry depicted is a line, a segment, or a ray. It essentially enhances the understanding of characteristics unique to each geometric figure, beneficial for students beginning their journey in geometry basics.more