The document explains how to solve the problem of finding the lowest common multiple (LCM) of 4 and 5. It shows the work of multiplying 4 and 5 to get 20, and then subtracting 1 from 20 to get the final LCM of 19. The operations used were multiplication or division and subtraction. First, 4 and 5 are multiplied to find the LCM, which is the multiple that is a factor of both numbers. Then 20 is subtracted by 1 to get the answer of 19.
Online Safety & Efficacy: Research MilestonesAnne Collier
A talk about 15+ years of Internet safety education (highlighting what are, for me, the key milestones in the US, Canadian and European youth-online-risk and social-media research literature), given March 19, 2013, in Sydney, Australia, at the World Congress on Family Law & Children's Rights. My subtitle: Helping our children navigate the unmapped whitewater of a networked world AND grow up at the same time!
This document discusses measurement and how it is used in daily life. It defines measurement as describing attributes like length, weight, or temperature. It then outlines the Metric and Customary systems of units, providing examples of common prefixes and units. The document explains how to convert between the two systems and lists some common tools used for measurement like rulers, clocks, and scales. It describes how measurement is essential for tasks like knowing distances, times, or angles as well as when working with materials to ensure the correct amounts are used.
The document defines measurement as using accuracy and length to measure objects. It discusses various tools used to measure length, width, time, angles, amounts, and capacities. It also defines units of measurement like mass, weight, volume, and dimensions. The document then focuses on the metric system, providing the mnemonic "King Henry Doesn't Usually Drink Chocolate Milk" to remember common metric prefixes. It discusses metric conversions and time conversions. The document also notes that mass stays the same regardless of location and compares different measurement systems. It concludes by stating that materials and measurement are connected because measuring is necessary to determine amounts when making materials.
This document provides steps to calculate how much cash in $10 bills can fit in a 30 liter backpack. It determines that 25,000 $10 bills would take up a volume of 26,250 cubic centimeters, which is less than the 30 liter (30,000 cubic centimeter) capacity of the backpack. Therefore, $250,000 in $10 bills could be stashed in the backpack.
The document discusses how to calculate the amount of cash that can fit in a bag. It provides two answers: 1) $25,000 by dividing $250,000 by 10. 2) Approximately 400 bills by calculating the volume of each bill, which is 10.5 millimeters, and determining how many fit in the bag.
Improper fractions have a numerator larger than the denominator. To convert an improper fraction to a mixed number, you divide the numerator by the denominator and write the remainder over the denominator. To convert a mixed number back to an improper fraction, you multiply the whole number part of the mixed number by the denominator and add it to the numerator.
Integers are positive numbers, negative numbers, or zero, but not fractions or decimals. Positive integers are whole numbers greater than zero to the right of zero on the number line, while negative integers are whole numbers less than zero to the left of zero. Negative numbers are represented by a minus sign and result from a subtraction where the number being taken away is larger. Positive numbers are greater than zero and represented by a plus sign. The number line helps show addition and subtraction of integers.
The document explains how to solve the problem of finding the lowest common multiple (LCM) of 4 and 5. It shows the work of multiplying 4 and 5 to get 20, and then subtracting 1 from 20 to get the final LCM of 19. The operations used were multiplication or division and subtraction. First, 4 and 5 are multiplied to find the LCM, which is the multiple that is a factor of both numbers. Then 20 is subtracted by 1 to get the answer of 19.
Online Safety & Efficacy: Research MilestonesAnne Collier
A talk about 15+ years of Internet safety education (highlighting what are, for me, the key milestones in the US, Canadian and European youth-online-risk and social-media research literature), given March 19, 2013, in Sydney, Australia, at the World Congress on Family Law & Children's Rights. My subtitle: Helping our children navigate the unmapped whitewater of a networked world AND grow up at the same time!
This document discusses measurement and how it is used in daily life. It defines measurement as describing attributes like length, weight, or temperature. It then outlines the Metric and Customary systems of units, providing examples of common prefixes and units. The document explains how to convert between the two systems and lists some common tools used for measurement like rulers, clocks, and scales. It describes how measurement is essential for tasks like knowing distances, times, or angles as well as when working with materials to ensure the correct amounts are used.
The document defines measurement as using accuracy and length to measure objects. It discusses various tools used to measure length, width, time, angles, amounts, and capacities. It also defines units of measurement like mass, weight, volume, and dimensions. The document then focuses on the metric system, providing the mnemonic "King Henry Doesn't Usually Drink Chocolate Milk" to remember common metric prefixes. It discusses metric conversions and time conversions. The document also notes that mass stays the same regardless of location and compares different measurement systems. It concludes by stating that materials and measurement are connected because measuring is necessary to determine amounts when making materials.
This document provides steps to calculate how much cash in $10 bills can fit in a 30 liter backpack. It determines that 25,000 $10 bills would take up a volume of 26,250 cubic centimeters, which is less than the 30 liter (30,000 cubic centimeter) capacity of the backpack. Therefore, $250,000 in $10 bills could be stashed in the backpack.
The document discusses how to calculate the amount of cash that can fit in a bag. It provides two answers: 1) $25,000 by dividing $250,000 by 10. 2) Approximately 400 bills by calculating the volume of each bill, which is 10.5 millimeters, and determining how many fit in the bag.
Improper fractions have a numerator larger than the denominator. To convert an improper fraction to a mixed number, you divide the numerator by the denominator and write the remainder over the denominator. To convert a mixed number back to an improper fraction, you multiply the whole number part of the mixed number by the denominator and add it to the numerator.
Integers are positive numbers, negative numbers, or zero, but not fractions or decimals. Positive integers are whole numbers greater than zero to the right of zero on the number line, while negative integers are whole numbers less than zero to the left of zero. Negative numbers are represented by a minus sign and result from a subtraction where the number being taken away is larger. Positive numbers are greater than zero and represented by a plus sign. The number line helps show addition and subtraction of integers.
The document discusses mixed fractions and improper fractions. A mixed fraction contains both a whole number and a fraction, like 2 3/4. An improper fraction is when the numerator is larger than the denominator, like 3/4. The document shows how to convert an improper fraction into a mixed fraction by dividing the numerator by the denominator and keeping the remainder over the denominator.
This document provides definitions and examples of common math fraction terms including mixed numbers, improper fractions, and the parts of a fraction. Mixed numbers contain both a whole number and a fraction part, while improper fractions have a numerator larger than the denominator. The document explains how to convert a mixed number to an improper fraction by multiplying the whole number by the denominator and adding the numerator. It also identifies the numerator and denominator as the key parts of any fraction.
This document discusses a math problem about running laps. It is not possible to run 151,720 meters by running complete 400-meter or 750-meter laps, as the remaining 20 meters cannot be achieved by a whole number of laps. The document analyzes why an odd or even number of laps of each distance would not add up to the total 151,720 meters.
There are different types of fractures depending on the severity: closed fractures crack the bone but do not break the skin, compound fractures penetrate the skin, and complete fractures crack the bone all the way through. Stress or fatigue fractures can occur from overuse of a bone over time. When a bone breaks, it immediately begins mending by creating soft tissue to reconnect the pieces within a few days. Over a few weeks, the tissue fully merges and hardens so the bone is even stronger than before, taking around 3-4 months total to fully heal.
The document proposes building a pool, basketball hoop, and benches in the backyard. It estimates the project would cost $1,255 total, including $600 for two benches and $655 for the 100 cubic meters of water required for a 10m by 5m pool that is 2m deep. Dimensions and costs are provided to help evaluate the feasibility of the project.
The document lists 100 different round or circular objects, shapes, icons, and symbols including basic shapes like circles and spheres, sports balls, celestial bodies, food items, logos, buttons on a computer, and finally a seal.
1) The narrator is a 10-year-old German boy who is taken from his home and forced to train in the army despite being underage, against his will.
2) After training for over a year, he finds himself on the battlefield, afraid and missing his parents. He breaks his foot during a battle in North Africa.
3) While recovering, he learns his parents have been killed after soldiers found them in hiding. He runs away and lives in an orphanage for years, deeply impacted by his experiences in the war.
4) By the end of the war in 1945, he has become independent but still misses his parents and hates war for all the lives
Fractions can be equivalent even if they look different, like 1/2 and 2/4, because they represent the same amount. Simplifying fractions makes them easier to understand by reducing the numerator and denominator by the same factor, such as reducing 6/12 to 1/2. Ordering fractions from least to greatest uses comparisons, where a fraction with a smaller numerator and denominator is less than one with a larger top and bottom numbers.
This document summarizes an activity called "Crossing the River" that was meant to teach algebraic patterns. The activity involved figuring out how to transport a given number of adults and children across a river using a small canoe that could hold 1 adult, 1-2 children, or 1 adult and 1 child. The summary explains that it takes 33 crossings to transport 8 adults and 2 children, and 29 crossings for 7 adults and 2 children. An algebraic pattern of 4n+1 was determined, where n is the number of adults.
The document discusses six persuasive strategies that can be used when making an argument:
1) Citing important people or experts to lend credibility to an argument.
2) Using facts, numbers, and information to support a claim logically.
3) Appealing to emotions to engage the audience.
4) Establishing trust and credibility with the audience.
5) Arguing that a issue requires immediate action.
6) Backing up an argument with reliable research.
Equivalent, simplifyng and comparing fractionsgrade5a
Equivalent, Simplifying and Comparing Fractions. There are three main topics covered: 1) Equivalent fractions are two fractions that have the same value but different numerators and denominators. 2) Simplifying fractions involves dividing or multiplying the numerators and denominators to get a reduced form. 3) Comparing fractions involves determining if they have the same or different denominators. Fractions with the same denominator are compared by their numerators, while those with different denominators require finding a common denominator first.
This document provides an overview of different measurement systems including the metric system, imperial system, and time. It discusses key units like meters, kilograms, pounds, and hours. It also explains how measurement is used in everyday contexts like construction, transportation, clothing, and more. The document aims to teach about various systems of measurement and their applications.
The document discusses various math concepts including numbers, operations, place value, expanded form, positive and negative numbers, and number lines. It explains that numbers extend infinitely in both positive and negative directions, with zero in the middle. The four basic operations - addition, subtraction, multiplication, and division - are introduced as important math skills. Place value and expanded form involve organizing numbers into categories based on their value. Positive numbers are above zero while negative numbers are below zero. Number lines provide a way to visualize numbers and operations.
The document discusses mixed fractions and improper fractions. A mixed fraction contains both a whole number and a fraction, like 2 3/4. An improper fraction is when the numerator is larger than the denominator, like 3/4. The document shows how to convert an improper fraction into a mixed fraction by dividing the numerator by the denominator and keeping the remainder over the denominator.
This document provides definitions and examples of common math fraction terms including mixed numbers, improper fractions, and the parts of a fraction. Mixed numbers contain both a whole number and a fraction part, while improper fractions have a numerator larger than the denominator. The document explains how to convert a mixed number to an improper fraction by multiplying the whole number by the denominator and adding the numerator. It also identifies the numerator and denominator as the key parts of any fraction.
This document discusses a math problem about running laps. It is not possible to run 151,720 meters by running complete 400-meter or 750-meter laps, as the remaining 20 meters cannot be achieved by a whole number of laps. The document analyzes why an odd or even number of laps of each distance would not add up to the total 151,720 meters.
There are different types of fractures depending on the severity: closed fractures crack the bone but do not break the skin, compound fractures penetrate the skin, and complete fractures crack the bone all the way through. Stress or fatigue fractures can occur from overuse of a bone over time. When a bone breaks, it immediately begins mending by creating soft tissue to reconnect the pieces within a few days. Over a few weeks, the tissue fully merges and hardens so the bone is even stronger than before, taking around 3-4 months total to fully heal.
The document proposes building a pool, basketball hoop, and benches in the backyard. It estimates the project would cost $1,255 total, including $600 for two benches and $655 for the 100 cubic meters of water required for a 10m by 5m pool that is 2m deep. Dimensions and costs are provided to help evaluate the feasibility of the project.
The document lists 100 different round or circular objects, shapes, icons, and symbols including basic shapes like circles and spheres, sports balls, celestial bodies, food items, logos, buttons on a computer, and finally a seal.
1) The narrator is a 10-year-old German boy who is taken from his home and forced to train in the army despite being underage, against his will.
2) After training for over a year, he finds himself on the battlefield, afraid and missing his parents. He breaks his foot during a battle in North Africa.
3) While recovering, he learns his parents have been killed after soldiers found them in hiding. He runs away and lives in an orphanage for years, deeply impacted by his experiences in the war.
4) By the end of the war in 1945, he has become independent but still misses his parents and hates war for all the lives
Fractions can be equivalent even if they look different, like 1/2 and 2/4, because they represent the same amount. Simplifying fractions makes them easier to understand by reducing the numerator and denominator by the same factor, such as reducing 6/12 to 1/2. Ordering fractions from least to greatest uses comparisons, where a fraction with a smaller numerator and denominator is less than one with a larger top and bottom numbers.
This document summarizes an activity called "Crossing the River" that was meant to teach algebraic patterns. The activity involved figuring out how to transport a given number of adults and children across a river using a small canoe that could hold 1 adult, 1-2 children, or 1 adult and 1 child. The summary explains that it takes 33 crossings to transport 8 adults and 2 children, and 29 crossings for 7 adults and 2 children. An algebraic pattern of 4n+1 was determined, where n is the number of adults.
The document discusses six persuasive strategies that can be used when making an argument:
1) Citing important people or experts to lend credibility to an argument.
2) Using facts, numbers, and information to support a claim logically.
3) Appealing to emotions to engage the audience.
4) Establishing trust and credibility with the audience.
5) Arguing that a issue requires immediate action.
6) Backing up an argument with reliable research.
Equivalent, simplifyng and comparing fractionsgrade5a
Equivalent, Simplifying and Comparing Fractions. There are three main topics covered: 1) Equivalent fractions are two fractions that have the same value but different numerators and denominators. 2) Simplifying fractions involves dividing or multiplying the numerators and denominators to get a reduced form. 3) Comparing fractions involves determining if they have the same or different denominators. Fractions with the same denominator are compared by their numerators, while those with different denominators require finding a common denominator first.
This document provides an overview of different measurement systems including the metric system, imperial system, and time. It discusses key units like meters, kilograms, pounds, and hours. It also explains how measurement is used in everyday contexts like construction, transportation, clothing, and more. The document aims to teach about various systems of measurement and their applications.
The document discusses various math concepts including numbers, operations, place value, expanded form, positive and negative numbers, and number lines. It explains that numbers extend infinitely in both positive and negative directions, with zero in the middle. The four basic operations - addition, subtraction, multiplication, and division - are introduced as important math skills. Place value and expanded form involve organizing numbers into categories based on their value. Positive numbers are above zero while negative numbers are below zero. Number lines provide a way to visualize numbers and operations.