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# Watch 80 Free A+ Math Video Lessons

Apr 30, 2020 - Dec 31, 2023

Sharpen your math skills with 80 FREE 1-hour math video lessons by grade level and topic at:

https://www.facebook.com/mathnasium/live

August 31st - September 2nd

Monday, August 31 – The Power of Exponents (Grades 5+)

Wednesday, September 2 – We're About to Go Viral: Popular Internet Math Problems (Grades 5+)

August 24th - August 28th

Monday, August 24 – Order of Operations Series #1 (Grades 4+)

Wednesday, August 26 – Order of Operations Series #2 (Grades 4+)

Friday, August 28 – Prime Factorization (Grades 6+)

August 17th - August 21st

Monday, August 17 – Tiles, Tessellations, Transformations (Grades 5+)

Wednesday, August 19 – Mental Math Series #9: The Power of 9s (Grades 3+)

Friday, August 21 – Mental Math Series #10: Knowing Left from Right (Grades 3+)

August 10th - August 14th

Monday, August 10 – If this, then that! #1 (Grades 7+)

Tuesday, August 11 – If this, then that! #2 (Grades 7+)

Wednesday, August 12 – Mental Math Series #7 (Grades 3+)

Thursday, August 13 – Mental Math Series #8 (Grades 3+)

Friday, August 14 – How many of this, in that?  (Grades 3+)

August 3rd - August 7th

This week’s lessons:

Mon, 8/3: Quantitative Analysis Series No. 1
Tue, 8/4: Solving Proportions No. 1
Wed, 8/5: Solving Proportions No. 2
Thu, 8/6: Pick Any Two Numbers: Math Magic No. 2
Fri, 8/7: Quantitative Analysis Series No. 2

This week's videos are recommended for grades:

Mon, Fri: Upper elementary and higher
Tues, Wed: Middle school and higher
Thu: Lower elementary and higher

July 27th - July 31st

This week’s lessons:

Mon, 7/27: Estimation Series No. 1
Tue, 7/28: Estimation Series No. 2
Wed, 7/29: Mental Math Series No. 5 (with a practice sheet)
Thu, 7/30: Mental Math Series No. 6
Fri, 7/31: Time is Passing By!

This week's videos are recommended for grades:

Mon-Fri: Mid-Elementary and higher

July 22nd - July 24th

This week’s lessons:

Wed, 7/22: Mental Math Series No. 4 (with a practice sheet)
Thu, 7/23: Angles Inside Shapes, Angles Outside Shapes No. 1
Fri, 7/24: Angles Inside Shapes, Angles Outside Shapes No. 2

This week's videos are recommended for grades:

Wed: Mid-Elementary and higher
Thu, Fri: Middle School Geometry and higher

July 13th - July 17th

This week’s lessons:

Mon, 7/13: Problem Solving with Fractions Series: Part 1
Tue, 7/14: Problem Solving with Fractions Series: Part 2
Wed, 7/15: Problem Solving with Percents Series: Part 1
Thu, 7/16: Problem Solving with Percents Series: Part 2
Fir, 7/17: I Know What You're Thinking: Math Magic Part 1

This week's videos are recommended for grades:

Mon - Thu: Upper Elementary and higher
Fri: Middle Elementary and higher

July 6th - July 10th

This week’s lessons:

Mon, 7/6: Metric System
Tue, 7/7: Find the Missing Number
Wed, 7/8: Symbolic Operators
Thu, 7/9: Prime Numbers and Goldbach's Conjecture
Fir, 7/10: Mental Math Series: Part 3

This week's videos are recommended for grades:

Mon, Fri: Middle Elementary and higher
Tue: Middle School and higher
Wed: Pre-Algebra and higher
Thu: Upper Elementary and higher

June 29th - July 2nd

This week’s lessons:

Mon, 6/29: Elementary Data Representation
Tue, 6/30: Egyptian Fractions
Wed, 7/1: Counting without Counting: An Introduction to Combinatorics
Thu, 7/2: Math in Art Series: Part 3

This week's videos are recommended for grades:

Mon: Middle Elementary and higher
Tue - Fri: Upper Elementary and higher

June 22nd - 26th

This week’s lessons:

Mon, 6/22: Geometric Foundations
Tue, 6/23: Math in Art Series: Part 1
Wed, 6/24: Math in Art Series: Part 2
Thu, 6/25: What are the Odds?
Fri, 6/26: Don't Spill Anything: Linear Diophantine Equations

This week's videos are recommended for grades:

Mon, Thu: Lower Elementary and higher
Tue, Wed, Fri: Upper Elementary and higher

June 15th - 19th

This week’s lessons:

Mon, 6/15: Multiplication Mastery Series Part 1: 0s and 1s, 2s, 10s, 5s
Tue, 6/16: Multiplication Mastery Series Part 2: 3s, 4s, 11s, 12s, 9s
Wed, 6/17: Multiplication Mastery Series Part 3: 6s, 7s, 8s
Thu, 6/18: Numberless Math Problems
Fri, 6/19: Mental Math Series № 2

This week's videos are recommended for grades:

Mon-Thu: Lower Elementary and higher
Fri: Mid-Elementary and higher

June 8th - 12th

This week’s lessons:

Mon, 6/8: Perfect Squares and Square Roots
Tue, 6/9: Pizza Math
Wed, 6/10: Mental Math Series № 1
Thu, 6/11: Pythagoras' Theorem
Fri, 6/12: An Introduction to The Fibonacci Sequence and The Golden Ratio

This week's videos are recommended for grades:

Mon: Upper Elementary and higher
Tue: Lower Elementary and higher
Thu: Lower Middle School and higher
Wed, Fri: Mid-Elementary and higher

June 1st - 5th

This week’s lessons:

Mon, 6/1: Solving Basic Equations
Tue, 6/2: An Introduction to Modular Arithmetic
Wed, 6/3: Cryptography
Thu, 6/4: The Euclidean Algorithm: A Different Look at "Greatest Common Factor"
Fri, 6/5: Dollars Make Cents

This week's videos are recommended for grades:

Mon, Wed: Middle School and higher
Tue, Thu: Upper Elementary and higher
Fri: Lower Elementary and higher

May 26th - 29th

This week’s lessons:

Tue, 5/26: Finding the Area of Basic 2D Shapes
Wed, 5/27: 3D Figures: Nets and Volume
Thu, 5/28: A Wholes and Parts Look at Area
Fri, 5/29: Angles Inside Shapes, Angles Outside Shapes

This week's videos are recommended for grades:

Tue, Thu: Upper Elementary and higher
Wed, Fri: Middle School and higher

May 18th - 22nd

This week’s lessons:

Mon, 5/18: Exploring Visual and Numerical Patterns
Tue, 5/19: Divide & Conquer: Divisibility Rules — Basic
Wed, 5/20: Graphing Points and Lines!
Thu, 5/21: Divide & Conquer: Divisibility Rules — Advanced
Fri, 5/22: Counting Systems: Base Not 10

This week's videos are recommended for grades:

Mon: Middle Elementary and up
Tue, Thu: Upper Elementary and up
Wed, Fri: Lower Middle School and up

May 11th - 15th

This week’s lessons:

Mon, 5/11 - "Greatest Common Factor And Least Common Multiple"
Tue, 5/12 - "Counting By Any Number, From Any Number!"
Wed, 5/13 - "All About Rulers: Measuring Up!"
Thu, 5/14 - "Fractional Parts: Finding The Part And The Whole"
Fri, 5/15 - "Unit Rate: For Each And Every 1"

This week's videos are recommended for grades:
Tue - lower elementary and up
Mon, Wed, Thu, Fri - upper elementary and up

May 4th - 8th

This week’s lessons:

Monday, May 4th - "Percent - For Each 100"
Tuesday, May 5th - "A Number Sense Look at Horizontal Addition"
Wednesday, May 6th - "An Introduction to Comparing and Ordering Fractions"
Thursday, May 7th - "Reasoning in Groups"
Friday, May 8th - "Problem Solving with Wholes and Parts"

4/30/2020 + 5/1/2020

This week’s lessons:

Thursday - “Extending Place Value Concepts”
Friday - “Exploring Half of Even and Odd Numbers”

https://www.facebook.com/mathnasium/live

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