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Pre-Algebra Skills

Math 20:

-Multiplication

-Fractions

-Decimals

-Percent

-Geometry

-Integers

-Statistics

Math 20 Videos

(recorded Spring 2018 at Clackamas Community College)

I hear a lot about Math Anxiety and for that I love to recommend this video:

Math Anxiety: https://youtu.be/7snnRaC4t5c

My Mom Beth Josi is a motivational Speaker and she has been giving this seminar to help people my whole life: Winnervision (A video by Beth Josi to help motivate! Growth Mindset stuff): https://youtu.be/b2P8FLUiJtU

I made these videos of my class lessons from a Math 20 class I taught.

Fractions:

Divisibility Rules: https://youtu.be/dhW24tzgeZ8

Times Tables Fill In The Blank (handout)

The Product Game for learning Times Tables: https://youtu.be/qkvOrzFcbr4

The Product Game Board (handout)

Game 24: https://youtu.be/YYW0ap4MYDw

Order of Operations: https://youtu.be/A4esdxP4NZU

Primes vs. Composite: https://youtu.be/Rf073jZVTC8

Sieve of Eratosthenes (handout)

Prime Factorization: https://youtu.be/Xsx7NCJGKZ8

Factor Trees: https://youtu.be/_FDN4SiV7OM

Factor Rainbows: https://youtu.be/G3Sh8b9qEGo

GCF: https://youtu.be/fp9R6w5-1Lw

Fraction Strips: https://youtu.be/he3nHwpH4NM

Fractions Strips (handout)

Equivalent Fractions: https://youtu.be/lXveaEqBKIk

https://youtu.be/FHENDQId1wI

Equivalent Fractions and Adding Fractions: https://youtu.be/lFEgJgP2vco

Mixed Numbers & Improper Fractions: https://youtu.be/43o1F_55P7g

Equivalent Fractions & Cross Products: https://youtu.be/VkdhfUocCqw

Multiplying Fractions: https://youtu.be/1r9QOkkMbRU

Dividing Fractions: https://youtu.be/15blVeGBES4

Multiplying and Dividing Fractions: https://youtu.be/1EgE47JSwXU

Adding Fractions: https://youtu.be/qMJaqv8iOZg

Adding Fractions: https://youtu.be/B_QdN1Mz19I

Change mixed numbers to improper fractions before we multiply or divide: https://youtu.be/a5RzundJw3k

Decimals:

Scientific Notation: https://youtu.be/WbbF01k-gL0

Decimals Part 1: https://youtu.be/5PT0y5R6v_o

Decimals Part 2: https://youtu.be/lwqL0IodEv4

Geometry:

Area, perimeter, and volume: https://youtu.be/UopVs_OOdSo

Geometry: https://youtu.be/sJggUrRuQcc

Irregular Shapes: https://youtu.be/-Fub1EJMLXM

Circles: https://youtu.be/pEGsuKQdX6s

Circles Part 2: https://youtu.be/oGY0_1jbDhI

Pythagorean Theorem: https://youtu.be/pXtTGx_3d9I

Integer Operations:

The Real Numbers https://youtu.be/AtmZy7O93bc

Adding Integers: https://youtu.be/se_ATzt_TZs

Subtracting Integers: https://youtu.be/X4fMqCsivPc

Multiplying & Dividing Integers: https://youtu.be/4QxBC6pq5g8

Statistics:

Data, Mean, Median, Mode: https://youtu.be/wa2GKdEg7io

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