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Grade 92

Need more on EQ2 and it's not entirely true

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One reason why you would need to know how to evaluate expressions is for work. If you had an expression to show a piece of information, but you did not know one factor, it is important to know what that factor is.

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Why do you need to know how to evaluate expressions? What would be the beneift?

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It means that you find the like terms, do the operations ONLY ADDING/SUBTRACTING LIKE TERMS and finding what the equation would look like then.

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The benefit of knowing the mathematical properties is that you can figure out other ways to look at and analyze a problem and it will make you able to figure it out easier.

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What does it mean to simplify an expression by combining like terms.

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What is the benefit of understanding of mathematical properties?

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A fun way to learn expressions!

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In the example: 4x + 3y, x and y are the variables

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Lots of good info on what it is.

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The Law that says you can swap numbers around and still get the same answer when you add.
Or when you multiply.

Examples:
You can swap when you add: 6 + 3 = 3 + 6
You can swap when you multiply: 2 × 4 = 4 × 2

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The Law that says you can swap numbers around and still get the same answer when you add. Or when you multiply. Examples: You can swap when you add: 6 + 3 = 3 + 6 You can swap when you multiply: 2 × 4 = 4 × 2

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Explains what the distributive property is.

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The distributive law of multiplication over addition | Pre-Algebra | Khan Academy

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Numbers and/or symbols grouped together to show the value of something.

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A variable is something, usually a letter, that represents a number

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The commutative property shows that even if the equation if flipped around, it has the same answer

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The associative property shows that no matter how you group the number, they answer is still the same

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The distributive property said that when you are multiplying two numbers, and then adding them, it is the same as multiplying them separately.

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Grade 100

Love the shipwreck example.Clever.

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Positive: Forward, Onward, Raise, High, Positively.

Negative: Drop, Negatively, Backward, Below, Fall.

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What are 5 words that indicate that a number is moving in a positive direction? What are 5 words that indicate that a number are moving negative?

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A mountain would be a feature above sea level, because they are very tall. The beach might be equal to sea level. A scuba diver or underwater canyon could be very low below sea level. A bridge would be above sea level. A ship wreck in shallow water would have a negative, and positive number.

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If sea level represent zero, what geographical features would represent positive integers and what would represent negative integers?

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This is a fun game that can help you with inequality!

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Inequality is when two numbers or more are not equal.

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This website is a great website for introduction to negative numbers.

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Introduction to Negative Numbers | Purplemath

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Introduces negative numbers, along with their notation. Demonstrates how to relate the number line to negative numbers, and how to complete inequalities involving negative numbers.

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A negative number is a number below zero!

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A cool raps about numbers! Including rational numbers

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A rational number is any number including decimals, fractions, negatives, positives, and zero.

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Here are a few examples of integers: 9, 7, 345, 0, -8, -65.

They are all integers.

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To convert a decimal to a fraction you first, say it out loud and then write it down, then simplify. To convert a fraction to a decimal, you divide the numerator by the denominator. To convert percent to decimal you just pull the decimal 2 places to the left. To convert decimal to percent, you pull the decimal two places to the right.

To convert fraction to percent, you convert the fraction to a decimal and decimal to percent. To convert a percent to a fraction, you convert the percent to decimal, then decimal to the fraction.

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How do you convert between fractions, decimals, and percents?

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A number that is postive, negative, or zero.

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100

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You would convert a mixed number into an improper fraction by multiplying the whole number by the denominator, adding the numerator to it and then putting the final answer over the denominator.

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Because if you needed to give part of something to a large amount of people then you would have to do multiplying fractions. If you needed to give parts of a pizza to a big party. If you needed to multiply  part of wood enough times to build a structure. And finally, if you needed to multiply how many times you would have run a certain distance to reach a final distance.

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How would you convert a mixed number into an improper fraction?

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Why would you need to understand how to multiply fractions? What are 3 real-life reasons to multiply fractions?

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In the fraction 6/7 six is the numerator and 7 is the denominator.

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To get the reciprocal of a fraction, just turn it upside down.

Like this:

Fractions

A Fraction (such as ) has two numbers:

We call the top number the Numerator, it is the number of parts we have.
We call the bottom number the Denominator, it is the number of parts the whole is divided into.

Reciprocal of a Fraction

To get the reciprocal of a fraction, just turn it upside down.
In other words swap over the Numerator and Denominator.

Examples:

That last example was interesting. The reciprocal of is 2

Likewise the reciprocal of is 3 and so on.

Multiplying a Fraction by its Reciprocal

When we multiply a fraction by its reciprocal we get 1:

Examples:

Reciprocal of a Mixed Fraction

To find the reciprocal of a Mixed Fraction, we must first convert it to an Improper Fraction, then turn it upside down.

Example: What is the reciprocal of 2 (two and one-third)?
The Answer is: 3 7

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To get the reciprocal of a fraction, just turn it upside down. Like this: A Fraction (such as ) has two numbers: We call the top number the Numerator, it is the number of parts we have. We call the bottom number the Denominator, it is the number of parts the whole is divided into.

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Explains how to locate the numerator and denominator

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Numerator and denominator of a fraction | Fractions | Pre-Algebra | Khan Academy

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Shows an example of what a fraction looks like.

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When you turn a fraction upside down--

used in division of fractions.

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The numerator is the top part of a fraction. It shows how many parts of a whole there is.

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A fraction is a way to see a number that is in between two numbers

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The denominator is the bottom number of a fraction that shows how many parts make up the whole.

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100

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You might need to use it if you were finding the volume of something. If the length, width, and height weren't exact measurements then you would need to multiply the numbers (which would be decimals).

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When might you need to multiply decimals outside of the classroom?

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It is important to line up the decimals because while you are solving the problem you can ignore the decimals. This is because you can solve the problem and then just bring the decimal right down once your done,

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Why is it important to line up the decimals when adding or subtracting?

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IN this game you have to find as many factors for the product given.

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Exercise your factoring ability against a human or the computer in this Calculation Nation game.

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Take 14 and 6. There is a difference of 8.

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Shows what the sum is.

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It relates to divisor because your dividing the dividend by the divisor. They both have to do with the division process.

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Explains what divisors and dividends are.

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An animation that describes dividend, divisor, and quotient-- Created using PowToon -- Free sign up at http://www.powtoon.com/ . Make your own animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video.

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1056

1 is in the thousands place, 0 is in the hundreds place, 5 is in the tens place, and 6 is in the tens place.

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Shows the parts of a number with a decunal

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The product is what you get when two numbers are multiplied.

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the difference of two numbers is the amount between two numbers.

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What you get when two or more numbers are added.

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What your going to divide up

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The number you divide by.

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Where the digit is in a number.

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A decimal comes after a whole number and then has a partial number following it

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Grade 96

EQ 2 needs more detail

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Prime factorization is when you take a number and you find its prime factors. They should multiply to make the number that you started with.

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What is prime factorization and explain how to find the prime factorization of a number?

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GCF is when you are splitting something into smaller sections or distributing something but LCF is when there is something happening over and over or get multiple items in order to have enough

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What is the difference between GCF and LCM?

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18 is a multiple of 3, because 3 × 6 =

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Jan wants to get together gift bags for her guests at her birthday party. She has 18 cookies and 8 pencils. How many bags can she make?

8 pencils

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this shows an example of factorizing a number.

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This shows two factors of 10

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Shows what prime and composite numbers are.

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We cannot multiply other whole numbers like 2, 3 or 4 together to make 5

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Prime numbers

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Prime numbers | Factors and multiples | Pre-Algebra | Khan Academy

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Finding what numbers multiply to make the original number you started with

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The highest number that divides equally into 2 or more numbers

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a factor is a number that can be multiplied to make a certain number

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a multiple is the product of any quantity and integer

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A prime number is a number thats only factors are 1 and itself

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A composite number is a number that has factors other than 1 and itself

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Grade 100

+ Very nice job.

+ I used your padlet as an example to all of my classes as an idea of what they should do. I also showed my mom when she was visiting. :-)