Ratio Tables 101

Ratio Tables are my FAVORITE math thing to do and to teach!  They are an invaluable tool for ALL students.  They can be intimidating to work with at first and therefore, require practice.

Ratio Tables can be used for:

  • Solving fractions (fractions are ratios!)
  • Organizing your work
  • Brainstorming how to solve a problem

The basics of Ratio Tables can be helpful later when your child is doing:

  • Coordinate Planes
  • Functions
  • All Fraction Operations

Here is an example of using a Ratio Table when working with a recipe.

Ratio Tables use multiplication and division operations.   As well as adding and subtracting groups of ratios.  You might see ratio tables more complex with decimals and fractions within them.   I will show those next time!

Here is another example.  This table shows equivalent ratios, which are the same thing as fractions.  4/6 is equal to 2/3 and 12/18 by scaling down (division) or scaling up (multiplication).


The COOLEST part of ratios tables is you can combine, or add, any equal ratios from the table, like 2/3 and 12/18, to get another equal ratio, 14/21.


I challenge YOU to try them!

 

 

© MathMom.org

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s