August SALE! Get Math Mammoth and Make It Real Learning downloads & CDs at 27% off — right here at the MathMammoth.com website. Use coupon code M3Z2-VXC5-G8P4 at checkout. Offer valid through September 1, 2019.



^

Solving equations — beginner lesson — examples with a pan balance

This is a beginner video lesson (pre-algebra or 7th grade) explaining:

  • WHAT are equations?
  • What is the general idea as to how we solve equations?

An equation is of the form (expression) = (expression). An equation can be a true or false equation. For example, 5 = 2 + 2 is a false equation.

If an equation contains an unknown, then solving the equation means finding the value of the unknown that makes the equation TRUE.

In the latter half of this lesson, we look at how a pan balance (scales) can model the process of solving equations. If we add the same amount to both sides of the balance, the sides will stay balanced (the weights stay equal). The same is true if we divide or multiply both sides by the same number.





See also

Math Mammoth Grade 7 curriculum (pre-algebra)

Back to pre-algebra videos index

Back to the index of all videos

WAIT!

Receive my monthly collection of math tips & resources directly in your inbox — and get a FREE Math Mammoth book! :)


We respect your email privacy.
You can unsubscribe at any time.

Math Mammoth Tour


Confused about the different options? Take a virtual email tour around Math Mammoth! You'll receive:

An initial email to download your GIFT of over 400 free worksheets and sample pages from my books. Six other "TOURSTOP" emails that explain the important things and commonly asked questions concerning Math Mammoth curriculum. (Find out the differences between all these different-colored series!)

This way, you'll have time to digest the information over one or two weeks, plus an opportunity to ask me personally about the curriculum.
A monthly collection of math teaching tips & Math Mammoth updates (unsubscribe any time)
We respect your email privacy.

Note: You will FIRST get an email that asks you to confirm your email address. If you cannot find this confirmation email, please check your SPAM/JUNK folder.

"Mini" Math Teaching Course


This is a little "virtual" 2-week course, where you will receive emails on important topics on teaching math, including:

- How to help a student who is behind
- Troubles with word problems
- Teaching multiplication tables
- Why fractions are so difficult
- The value of mistakes
- Should you use timed tests
- And more!

You will also receive:

A GIFT of over 400 free worksheets and sample pages from my books right in the very beginning. smile A monthly collection of math teaching tips & Math Mammoth updates (unsubscribe any time)
We respect your email privacy.

Note: You will FIRST get an email that asks you to confirm your email address. If you cannot find this confirmation email, please check your SPAM/JUNK folder.

Maria's Math Tips


Enter your email to receive math teaching tips, resources, Math Mammoth news & sales, humor, and more! I tend to send out these tips about once monthly, near the beginning of the month, but occasionally you may hear from me twice per month (and sometimes less often). smile

Peek at the previous tips here.

You will also receive:

  • A GIFT of over 400 free worksheets and sample pages from my books. smile
We respect your email privacy.