Free videos on expressions and ecuations (grades 6-7)
Find here free online math videos on algebraic expressions and equations for middle school. The videos match lessons in the Blue Series books Expressions & Equations and Linear Equations.
Introduction to algebra
Expressions – What are expressions and how to evaluate them
Expressions – write expressions from word phrases
Writing and simplifying expressions 1: length and perimeter
Writing and simplifying expressions 2: area
The distributive property (simplified lesson, for 6th grade)
Equations (an introduction)
Using two variables – an introduction to equations with two variables
The language of algebra
The topics below provide an foundation to principles used in algebra (and pre-algebra).
What are expressions & equations?
Working with expressions & equations
The commutative & associative properties
The distributive property — for grade 7 or pre-algebra
Growing patterns
I have not made video lessons for growing patterns, but you can use this Youtube video for starters.
The other two I list below give a very mechanical way of approaching these types of pattern problems, where you don't have to think so much — but the method explained works always, so it can be helpful, especially if such a problem is expected to be on a standardized test:
However, my goal in putting the growing pattern problems in Math Mammoth materials is NOT to teach students a mechanical way, but just give them some exposure to thinking of different ways to SEE the pattern, and then try to express it using symbols. So there is no need to learn the mechanical way.
Linear equations
Equations involving parentheses
How to use the formula for distance, rate (speed), and time to solve problems
Writing equations for word problems
The above videos match lessons in the Blue Series books Expressions & Equations and Linear Equations.
106 pages
PDF download $5.90
Printed copy $10.95
Free Sample pages (PDF)
Contents
Expressions
Writing and simplifying expressions 2: area
The distributive property
More equations
140 pages
PDF download $6.80
Printed copy $17.65
Free Sample pages (PDF)
Contents
Word Problems 1
Two-Step Equations
Growing Patterns
Variable on both sides
Graphing
Speed Time, and Distance
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