JoAnn's School

There are many strategies that we can use to add numbers. We can use Mental Math, place value and regrouping, estimating, or the Break Apart strategy. In this lesson we learn about the Break Apart strategy to add three-digit numbers by writing them in expanded form and adding each place value to get a sum. We use information from a table to estimate sums and to find the least number that would be more than double. We find if a sum will be less than or greater than a given amount.

3rd Grade Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVPton7wjphpYAhdTjnJsw0

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An explanation of how we can add two or more addends by using addition properties. We review the Commutative Property of Addition from video 1.1, which says we can add in any order and get the same sum. The Associative Property of Addition, which is often called the Grouping Property, states that we can group addends in different ways and still get the same sum. We also show an example of using both properties together to make addition easier. We make compatible numbers, doubles, or tens to make addition easier.

3rd Grade Math 1.1, Number Patterns
https://youtu.be/dib9sdKOLgE

3rd Grade Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVPton7wjphpYAhdTjnJsw0

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The Chicago area doesn't usually get snow on April 14th. For the past week, we've seen the temperature rise to almost 70 degrees Fahrenheit. Then, snow!

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An explanation of the methods we can use to do mental math to find sums. We can count by tens and ones, use compatible or friendly numbers, or start with the largest place value. Mental math is different than doing math with paper and pencil. We learn strategies to do addition mentally.

3rd Grade Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVPton7wjphpYAhdTjnJsw0

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An explanation of how to estimate sums by using compatible numbers, or place values, to round to the nearest ten or hundred. We compare the difference of estimating with compatible numbers to estimating with rounding to a place value. We then use data from a table to estimate sums.

3rd Grade Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVPton7wjphpYAhdTjnJsw0

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When we round a number, we find a number that tells us about how much or about how many. An explanation of the rounding rule with several examples using the digit to the right to tell us what to do and using number lines to see which ten or hundred that place value is closest to.

Are you ready for 3rd Grade Math?
https://youtu.be/tKlC9Ct29cs

3rd Grade Math 1.1, Number Patterns
https://youtu.be/dib9sdKOLgE

3rd Grade Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVPton7wjphpYAhdTjnJsw0

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An explanation of all the things that you need to have learned in 2nd grade to make sure you're ready for 3rd grade math. This is a playlist of the entire 3rd Grade Math Common Core lessons that should be learned before moving on to 4th grade. We will be using a 2015 copyright of the Houghton Mifflin Harcourt grade 3 math textbook. See below for an Amazon link. It's almost identical to the to 2012 copyright version. So, you can use the 2012 textbook if that's what you have. This playlist will be very similar to the 2012 playlist, but it will be more organized and I may use better manipulatives.

https://www.amazon.com/Houghton-Mifflin-Harcourt-Go-Math/dp/0544203976/ref=asc_df_0544203976/?tag=hyprod-20&linkCode=df0&hvadid=312034012759&hvpos=1o2&hvnetw=g&hvrand=8153602010588353038&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9021610&hvtargid=pla-568902556203&psc=1

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An explanation of how to factor the sums or differences of two cubes. Some polynomials are both a difference of cubes and a difference of squares. A polynomial that can't be factored is called a prime polynomial, and it's factors are prime factors. We can treat a difference of cubes as a sum in order to factor sums and differences of cubes.

Algebra II 5.5B, Factor Trinomials of the type x²+bx+c
https://youtu.be/4i3O4VXL2gU

Algebra II 5.5c, Factor Trinomials of the type ax²+bx+c
https://www.youtube.com/watch?v=IHv9BZ8GHmY&list=PLKi4WTp6PRGVGCVa4jrZLB7zFNG3mRg0N&index=117

Algebra II Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVGCVa4jrZLB7zFNG3mRg0N

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Though there's still a slight bit of tension between Lola and Bonnie, they get along pretty well. Bonnie, the smallest one, tends to show teeth and growl at Lola which causes friction between them. I've also discovered that Bonnie is a food thief! It only took a few seconds to teach both new dogs to use the doggie door. But, we're making progress because Lola and Bonnie share my lap while Betty lays by my legs. Everyone enjoyed the nice weather we had today. Hanging out on my back deck, which desperately needs to be replaced. Betty is learning to sit, and both dogs are coming when I call them (because of little treats).

An explanation of the Multiplication Property of Inequalities and how we can use it to solve inequalities. We graph their solutions on a number line. When multiplying both sides of an inequality by a negative we reverse the inequality symbol to make it true.

Algebra I Playlist:
https://www.youtube.com/playlist?list=PLKi4WTp6PRGXzkjUUMYVChM2WxWfgIrK4

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An explanation of how to find the slope and y-intercept on a graph just by looking at it. When a graph Rises to the right, we have a positive slope. When a graph falls to the right, we have a negative slope. How we can use two points as ordered pairs to count the rise and the run. We use the slope formula to make sure we've got our rise and run correct. We find the y-intercept by seeing where the graph crosses the y-axis, or where x equals zero.

Grade 8 Math #4.2a, What is Slope, What is Y intercept
https://www.youtube.com/watch?v=1Jo1xzLdLmA&index=41&list=PLKi4WTp6PRGUA2QyUH-n7aWGWv1jafWvO

Grade 8 Math #4.2b, Slope, Rate of change and Initial value b
https://www.youtube.com/watch?v=D_xaNrim9Xs&list=PLKi4WTp6PRGUA2QyUH-n7aWGWv1jafWvO&index=42

Grade 8 Math #4.2c, Get the Slope-intercept form of an equation FROM Ordered pairs
https://www.youtube.com/watch?v=Kb9B9u1NsJU&index=43&list=PLKi4WTp6PRGUA2QyUH-n7aWGWv1jafWvO

Grade 8 Math Full Playlist:
https://www.youtube.com/playlist?list=PLKi4WTp6PRGUA2QyUH-n7aWGWv1jafWvO

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An explanation of how to use and write ordinal numbers. How they show us where something is on a list. We use examples of first grade, second grade, third grade, we also use examples of baseball for first base, second base, third base. We discuss how each ordinal number ends with the same two letters as their words. We show the ordinal numbers for the letters of the alphabet and for the planets in order from the Sun. Page 95 in the Silver Burdett Grade 2 textbook.

Grade 2 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGXCEjmBCoa1zkw869Y_Xei-

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I spent the last couple of weeks trying to find a new shelter dog to fill my heart and home and came across these two girls who are a bonded pair. They're always together, eating and sleeping, and love each other very much. They're both about 7 years old. I have a lot of training to do because they don't know any commands or their new names yet. That means we're going to go through a lot of little treats. They were in the shelter for quite a while because most people don't want to adopt two dogs at the same time. I'm glad I could give them a home together.

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An explanation of some strategies that we can use to multiply by tens. We can use place value, the associative property of multiplication, a number line, or mental math. From mental math strategies we can use halving-and-doubling, adding partial products, or multiplying the tens place and adding however many zeros are in the equation.

Grade 4 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWMBVLWF734284bLvgiuLYK

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This morning I adopted a bonded pair of female older dogs. I named the long haired one Betty, and the short haired one Bonnie. They're getting along with Lola nicely so far. We've had one or two squabbles about food. But, otherwise everything is going great.
Neither of the new dogs knows how to sit, stay, or come (they still need to learn their new names ). But we'll work on those.
My heart and house are full again!

The third part of lesson 11.2, and an explanation of how we can compare box plots with greater variability, where there is less overlap of the median and interquartile range. We compare their shapes, centers, and spreads as a way to compare the data sets. We discuss outliers and how they are a value that is much higher or much lower compared to other values in the set. Why outliers affect the range of box plots but not the interquartile range.

Grade 7 Math #11.2A, Analyzing Box Plots
https://youtu.be/dim1_uBkQ7g

Grade 7 Math 11.2B, Compare Box Plots with Similar Variability
https://youtu.be/A0jrpTOJl1M

Grade 7 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

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An explanation of how we can compare two box plots numerically according to their shape, centers, and their spreads. Range and interquartile range are both measures of spread. We compare spreads by finding the difference between the third quartile and the first quartile to get the interquartile range for each box. Box plots with similar variability (spread) should have similar boxes and whiskers. They're similar key values indicate similar variability in their data sets.

Grade 7 Math #11.2A, Analyzing Box Plots
https://youtu.be/dim1_uBkQ7g

Grade 7 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

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An explanation of the five key values in a box plot, the least values, the greatest values, the lower quartile, the upper quartile, and the median. A quartile consists of three values: 1) the first quartile is the median of only the lower half of the data set, it's also called the lower quartile, 2) the median of the data set , and 3) the third quartile is the median of only the upper half of the data set, it's also called the upper quartile. We find the least and greatest values shown by the whiskers on the box plot. The interquartile range is the difference between the upper and lower quartiles which is represented by the length of the box. The length of the whiskers tell us about the range of the data.

Grade 7 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

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An explanation of how to solve an algebraic equation in one-step by isolating a variable to one side of the equal sign. We explain the Addition Property of Equality, Multiplication Property of Equality, Additive Inverse, and creating "zero pairs". How to multiply the reciprocal of a coefficient to both sides of an equation to isolate a variable. How to divide both sides of an equation by a coefficient to isolate a variable.

Grade 7 Math #6.2b, One as a coefficient or "the lonely variable "
https://www.youtube.com/watch?v=_cvCfyNdI-o&list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY&index=47

Grade 7 Math #6.1a, Add or Subtract Algebraic expressions
https://www.youtube.com/watch?v=0CFI5mDjZKo&list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY&index=43

Grade 7 Math #6.1b, Distributive property and Algebraic expressions
https://www.youtube.com/watch?v=QdN1bUpa4TM&index=44&list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

Grade 7 Math #6.1c, Factoring algebraic expressions
https://www.youtube.com/watch?v=eBhUswqS3Hc&index=45&list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

Grade 7 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

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The definition of a rational number as any number that can be expressed as a ratio of two integers and how to subtract negative rational numbers by adding the opposite. We discuss which sign we will use for our answer, the meaning of absolute value as how far a number is from zero, and using a number line to subtract a negative number by adding the opposite.

Grade 7 Math #3.3a, Subtract positive rational numbers
https://www.youtube.com/watch?v=_lzVN93yTgI&list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY&index=18

Grade 7 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGWOhs0gkb3-_LF0MtIDk3rY

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An explanation of how we can find elapsed time across a.m. and p.m. and across days. How we can use a number line to help us find elapsed time, or we can find elapsed time by making a table or list.

Grade 6 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVVH8hEaTUaaHTjR7XB4_WW

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An explanation of how we can use models to subtract fractions that have different denominators. You can print and cut out fraction bar models from the Joann's School Facebook page image section or from the internet. We find the difference between two fractions in its simplest form.

Grade 5 Math #6.1a, Things to Know Before We Add Fractions
https://www.youtube.com/watch?v=cF9UU3gpPQY&index=55&list=PLKi4WTp6PRGUWQxEfrZZTXOVF_I04fpeV

Grade 5 Math 6.1c, More modeling fraction addition with unlike denominators
https://youtu.be/JdDnOgfboE4

Grade 5 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGUWQxEfrZZTXOVF_I04fpeV

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A continuation of lesson 6.1a and 6.1b, which are linked below. We use models to add fractions that have different denominators. You can print out the fraction bars from the image section of the JoAnn's School Facebook page. We match the pieces of fraction strips of two fractions that have different denominators, which will give us the sum in its simplest form.

Grade 5 Math #6.1a, Things to Know Before We Add Fractions
https://www.youtube.com/watch?v=cF9UU3gpPQY&index=55&list=PLKi4WTp6PRGUWQxEfrZZTXOVF_I04fpeV

Grade 5 Math #6.1b, Use Models to Add Unlike Denominators
https://www.youtube.com/watch?v=1YsSPPJ53DU&index=56&list=PLKi4WTp6PRGUWQxEfrZZTXOVF_I04fpeV

Grade 5 Math Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGUWQxEfrZZTXOVF_I04fpeV

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An explanation of a simple event as an event that describes a single outcome, a compound event as an event that is made up of two or more simple events, mutually exclusive events are events that cannot both occur in the same trial of an experiment, and inclusive events which are events that have one or more outcomes in common. We discuss the formula for inclusive events and find the probability of an inclusive event. We use a Venn diagram to help us show the relationship between sets and find the probability of inclusive events. We use the complement of an event to find the probability of a compound event. We review and discuss the difference between mutually exclusive events and inclusive events for their formulas. P(AUB) + P(A) + P(B) - P(A∩B)

Geometry 13.1a, Fundamental Counting Principle
https://youtu.be/fizYovWKglA

Geometry 13.1b, Introducing Permutations & Factorials
https://youtu.be/xj26wR-O1tE

Geometry 13.1c, Combinations of a set
https://youtu.be/OqlUszxMi4A

Geometry 13.4a, Joint relative frequency & Marginal relative frequency in two-way tables
https://youtu.be/O-pTPtBEwx8

Geometry 13.4b, Conditional Relative Frequency & Two-Way tables
https://youtu.be/K6D27y8XgKQ

Geometry 13.5a, Simple event, Compound event, Mutually exclusive events
https://youtu.be/Iw8kAOpjOnI

High School Geometry Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVBM1nPhwW1lTuxi32Q0IZ3

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An explanation of simple event, compound event, and mutually exclusive events. We find the probabilities of mutually exclusive events by finding the sum of their individual probabilities. P(A U B) = P(A) + P(B)

Geometry 13.4a, Joint relative frequency & Marginal relative frequency in two-way tables
https://youtu.be/O-pTPtBEwx8

Geometry 13.4b, Conditional Relative Frequency & Two-Way tables
https://youtu.be/K6D27y8XgKQ

Algebra II 15.6a, Intersections & Unions & Compound Probability
https://www.youtube.com/watch?v=Tj1k0thTX74&index=16&t=0s&list=PLKi4WTp6PRGU7fAZi1CWGJh1Y-06Yux1T

Algebra II 15.6b, Adding Probabilities
https://www.youtube.com/watch?v=z9tP1BMr4eo&list=PLKi4WTp6PRGU7fAZi1CWGJh1Y-06Yux1T&index=16

High School Geometry Playlist
https://www.youtube.com/playlist?list=PLKi4WTp6PRGVBM1nPhwW1lTuxi32Q0IZ3

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Created 1 year, 1 month ago.

494 videos

CategoryEducation

Education for everyone!
I have over 2,600 Math videos on YouTube, ranging from 1st grade through Algebra 2.
It would be impossible for me to upload all of them onto BitChute.
I've included most of my GED Math videos, and the Grade 1 videos will auto upload from now on.
I planning to do Geometry, Trigonometry, then Pre-Calculus Playlist in the future.
You can study an entire grade level of Math, lesson by lesson with my playlists, in order.
Catch up to your class, work ahead, pass the GED, or place higher on college entry tests to avoid remedial classes.

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