Grade 8

75 Units, 203 Skills

Geometry - Angles and Transformations - Practice

Unit 1

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

Unit 2

Speed, Distance, and Time - Practice

Unit 3

Area and Perimeter Complex Shapes

Unit 4

Triangle Area - Practice

Unit 5

Fraction Multiplication - Practice

Unit 6

Exponents - Division - Intro

Unit 7

Time - Elapsed Time - Advanced

Unit 8

Measurement - Units Practice - Metric

Unit 9

Exponents - Advanced

Unit 10

Fractions, Decimals, and Percents

Unit 11

Order of Operations - Advanced

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 - Surface Area of 3D Shapes - Intro

Unit 17

Geometry - Volume of 3D Shapes - Intro

Unit 18

Rates and Ratios - Advanced

Unit 19

Probability and Counting - Single Event - Advanced

Unit 20

Patterning - Number Patterns Practice

Unit 21

Time - Elapsed Time, Negative - Advanced

Unit 22

Negative Integers - Intro

Unit 23

Division 3 by 2 Digit

Unit 24

Area and Perimeter Logic - Intro

Unit 25

Probability and Statistics - Counting and Probability Foundations

Unit 26

Factoring and Greatest Common Factor - Practice

Unit 27

Fraction Division - Intro

Unit 28

Geometry - Circle Area and Circumference - Practice

Unit 29

Geometry - Isosceles and Equilateral Triangles

Unit 30

Percentages - Practice

Unit 31

Digits and Divisibility - Practice

Unit 32

Cartesian Grid Geometry Logic - Intro

Unit 33

Pythagoras - Foundations

Unit 34

Decimal Multiplication - Advanced

Unit 35

Geometry - Intersecting, Parallel, and Perpendicular Lines

Unit 36

Percents and Simple Interest - Intro

Unit 37

Factoring and Lowest Common Multiple - Practice

Unit 38

Fraction Addition and Subtraction - Advanced

Unit 39

Squares and Square Roots - Advanced

Unit 40

Decimal Division - Advanced

Unit 41

Fraction Addition and Subtraction, Mixed - Practice

Unit 42

Factoring, Multiplication, Division, Fractions - Intro

Unit 43

Exponents - Multiplication and Division - Advanced

Unit 44

Geometry - Circle Area, Sectors and Donuts - Intro

Unit 45

Patterning - Number Patterns Advanced

Unit 46

Measurement - Units Advanced - Metric

Unit 47

Geometry - Surface Area of 3D Shapes - Practice

Unit 48

Exponents - Power Law - Intro

Unit 49

Factoring and Greatest Common Factor - Advanced

Unit 50

Algebra Manipulating Variables - Intro

Unit 51

+2

Geometry - Cylinders - Intro

Unit 52

Probability and Statistics - Counting and Probability Practice

Unit 53

Percentages - Advanced

Unit 54

Measurement - Unit Conversion Intro - Metric

Unit 55

Speed, Distance, and Time - Advanced

Unit 56

Ratios of Lengths - Intro

Unit 57

Cartesian Grid Geometry Logic - Practice

Unit 58

Percents and Simple Interest - Practice

Unit 59

Area and Perimeter Logic - Practice

Unit 60

Slope - Intro

Unit 61

Algebra Basic Concepts - Advanced

Unit 62

Factoring and Lowest Common Multiple - Advanced

Unit 63

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

Unit 64

Geometry - Volume Logic with 3D Shapes - Intro

Unit 65

Scientific Notation - Multiplication and Division - Intro

Unit 66

Pythagoras - Intro

Unit 67

Negative Integers - Practice

Unit 68

Speed, Distance, and Time Logic Challenges - Intro

Unit 69

Factoring, Multiplication, Division, Fractions - Practice

Unit 70

Pythagorean Triples - Intro

Unit 71

Cartesian Grid Distance - Intro

Unit 72

Probability and Statistics - Factorial Form Intro

Unit 73

Exponents - Power Law - Practice

Unit 74

Pythagorean Theorem with Decimals - Intro

Unit 75

Time - Elapsed Time, Negative - Advanced

Unit 22

This math unit focuses on developing students' proficiency in calculating elapsed time, specifically in the context of negative time changes, i.e., determining how much earlier one time is compared to another. Students begin by learning to calculate elapsed time between two specific times in terms of hours and minutes, including scenarios involving quarter and half-hour increments. They gradually progress to more precise calculations involving five-minute and even one-minute intervals. The unit advances from simpler tasks, where students deal with larger time chunks like quarter and half hours, to more complex tasks requiring them to calculate and understand time differences to the nearest minute. As they move through the unit, they are also challenged to perform these calculations across various contexts and formats, such as straightforward time difference calculation, adjusting times on a clock, and working with both analog and digital representations. This progression sharpens their skills in understanding and managing time, enhancing their ability to perform time calculations in practical and real-life scenarios, and deepening their overall mathematical thinking and problem-solving skills related to time management.

Skills you will learn include:

Foundational Units

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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 Time - Elapsed Time, Negative - Advanced.

This math topic focuses on calculating the difference in time between two clock readings to determine how many minutes earlier...

This math topic focuses on calculating the elapsed time in minutes between two given times, specifically assessing how many...

This math topic focuses on calculating negative elapsed times, specifically by subtracting minutes from a given start time...

This math topic focuses on advanced calculations of elapsed time in a negative format. Specifically, it teaches how to determine...

This topic focuses on calculating the new time after subtracting minutes from a given starting time. It involves understanding...

This math topic focuses on calculating elapsed time with negative increments, by determining the new time after a specified...

This topic practices calculating backward in time by five-minute intervals, helping to develop skills in understanding elapsed...

This math topic focuses on calculating elapsed time with negative adjustments, involving both hours and minutes, and returning...

This math topic focuses on calculating the elapsed time between two clocks, specifically determining how much earlier the...

This math topic focuses on calculating the negative elapsed time between two clock times, reported to the nearest quarter...

This math topic focuses on calculating the negative elapsed time between two given times in minutes, specifically when considering...

This math topic focuses on calculating the difference in time, specifically determining how many hours and minutes earlier...

This math topic focuses on calculating the elapsed time, specifically determining how many minutes earlier a second clock...

This topic focuses on calculating negative elapsed time by determining how many hours and minutes earlier one clock is compared...

This math topic focuses on calculating the difference in time between two clock readings, specifically determining how many...

This math topic focuses on calculating the negative elapsed time between two clocks down to the minute, emphasizing increments...

This math topic focuses on calculating elapsed negative time, specifically subtracting minutes from given times and determining...

This math topic focuses on calculating elapsed time with a specific emphasis on subtracting minutes from given times. It...

This math topic focuses on calculating elapsed time with an emphasis on subtracting minutes and hours from a given starting...

This math topic focuses on practicing subtraction of minutes from given times, specifically, understanding the effect of...

This math topic focuses on calculating elapsed time with negative adjustments, specifically in quarter-hour increments. The...

This topic focuses on calculating elapsed time with negative adjustments, specifically applying changes in terms of quarter-hour...

This math topic focuses on calculating the negative elapsed time between two given times to the nearest five minutes. It...

This math topic focuses on calculating elapsed time with a negative change, involving scenarios that require understanding...

This math topic focuses on calculating elapsed time, specifically determining how many minutes earlier one time is compared...

This math topic focuses on calculating elapsed time with negative changes, as well as converting hours and minutes into clock...

This math topic focuses on calculating negative elapsed times on the clock and representing hours and minutes as quarter...

This math topic focuses on calculating the time difference between two clocks, marking elapsed times in negative ways. The...

This math topic, titled "Time - Elapsed Negative - Two Times to Hours & Minutes - Quarter Hours," focuses on calculating...

This math topic focuses on advanced skills in calculating elapsed time with a negative change, specifically subtracting minutes...

This math topic focuses on calculating negative elapsed time associated with clocks and minute adjustments. The problems...

This math topic focuses on advanced elapsed time calculations where the changes involve negative time intervals. The problems...

This math topic focuses on calculating time changes and understanding elapsed time with a negative adjustment. Specifically,...

This topic is focused on advanced calculations of elapsed time involving negative differences. It includes problems that...

This math topic focuses on calculating elapsed time, specifically through exercises where students predict the time after...

This math topic focuses on calculating elapsed time, including scenarios with negative time changes. The main skill practiced...

This math topic focuses on understanding and calculating elapsed time, including negative durations. Students practice finding...

This math topic focuses on practicing calculations related to negative elapsed time. Students are required to solve problems...

This math topic focuses on calculating elapsed negative time, specifically subtracting minutes from times given in hours...

This math topic focuses on calculating the negative elapsed time between two clocks, expressed in hours and minutes, and...

This math topic focuses on calculating the elapsed time in hours and minutes using two given clock times, specifically identifying...

This math topic focuses on calculating elapsed time in hours and minutes, specifically when determining how much earlier...

This math topic focuses on determining how many hours and minutes earlier one time is compared to another, specifically using...

This math topic focuses on determining the time after specific changes. It delves into calculating elapsed time and converting...

This math topic focuses on estimating elapsed time with positive and negative adjustments. Specifically, it covers the conversion...

This math topic focuses on calculating negative elapsed time in the context of a clock. It centers on how the time changes...

This math topic focuses on calculating negative elapsed time while interpreting analog clocks in five-minute increments....

This math topic focuses on calculating elapsed time by subtracting minutes from given times. It reinforces understanding...

This math topic focuses on understanding elapsed time with adjustments in both positive and negative directions, specified...

This math topic focuses on calculating elapsed time, specifically with negative changes, where time is subtracted from a...

This math topic focuses on calculating elapsed time, specifically scenarios that could involve subtracting time (negative...

This math topic focuses on calculating elapsed time and converting time formats. The problems specifically require students...

This math topic focuses on advanced time calculation exercises, specifically involving solving problems related to elapsed...

This math topic focuses on computing the difference in time between two clocks, expressed through hours and minutes. It is...

This math topic focuses on calculating the elapsed time between two given times, specifically determining how many minutes...

This math topic focuses on calculating the negative elapsed time between two clocks in hours and minutes. Each problem presents...

This math topic focuses on calculating the elapsed time between two given times by determining how many minutes earlier one...

This topic focuses on calculating the difference in minutes between two given times, enhancing skills in elapsed time calculation,...

This math topic focuses on calculating elapsed time, specifically identifying how many hours and minutes earlier one time...

This topic focuses on calculating the elapsed time between two given times, assessing the ability to determine how many hours...

This math topic focuses on calculating the relative time difference between two clocks in minutes, presented as a "negative...

This math topic focuses on advanced time calculation skills, particularly determining the negative elapsed time between two...

This math topic focuses on calculating elapsed time, specifically dealing with differences between two given times and expressing...

This math topic focuses on calculating elapsed time using subtraction and involves changing the time by subtracting minutes...

This math topic focuses on advanced skills related to calculating elapsed time, particularly involving negative quantities...

This math topic focuses on calculating the elapsed time between two clock times with an emphasis on negative time intervals,...

This math topic centers on calculating the elapsed time in negative scenarios, specifically focusing on the time difference...

This math topic focuses on practicing how to calculate elapsed time using subtraction. Specifically, it involves determining...

This math topic focuses on calculating the elapsed time, specifically subtracting minutes from a given time and determining...

This math topic focuses on calculating elapsed time, specifically subtracting minutes and hours from a given time. Each problem...

This math topic focuses on calculating elapsed time with an emphasis on negative changes. It helps learners determine the...

This math topic focuses on calculating time after subtracting a specified number of minutes, with changes approaching or...

This math topic covers advanced skills related to calculating elapsed time with a focus on subtracting minutes and hours...

This math topic focuses on calculating changes in time, encompassing tasks on determining the future or past time after adding...

This math topic focuses on calculating elapsed time, specifically dealing with subtracting time (hence 'Negative') and figuring...

This math topic focuses on calculating elapsed time in a negative context, specifically determining how many minutes earlier...

This math topic focuses on calculating the elapsed time in minutes by comparing two different times shown on clocks. Students...

This math topic focuses on calculating the elapsed time in minutes between two given times, specifically identifying how...