Key To math series are the only math books we ever buy. They are simple, student-led and environmental friendly! You read it right, they are environmental friendly. The workbooks contain about 45 pages and are printed on thin paper similar to newsprint paper.

They are also simply laid out with easy to understand directions, so minimal instruction is needed. If you do need to help your child, the examples provided in the books are the perfect teaching tool. Simply write the example on a chalkboard or piece of paper and walk your child through the example.

The series also comes with an answer key, which I highly recommend. The curriculum is sold individually or as a set, and I think they are really well priced.


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  1. Hi Hana! Just wanted to thank you for directing me to this awesome resource again. I tried the “Key to algebra” books a couple of years ago and was not much impressed, because I was looking for a comprehensive curriculum for algebra. After watching this video I thought to give it a try again, keeping in mind it can be used as an extra practice resource. I tried “key to percents” recently and loved it. Thanks!!

  2. Hy! Where can I get these workbooks? I am from Slowenia. Is it possible to order them?
    Thank you for your answer.
    By from Slowenia. Natalija

  3. I have a fifth grader who is doing Waldorf homeschool for the first time this year. We are using Live Ed. for his math and have used these books but I found that he really needs to go back to learning his multiplications better. Unfortunately I was unable to teach him the Waldorf approach to that and am having a hard time trying to figure out a way to teach it without purchasing curriculum for whatever grade it’s taught in. Please tell me the resources you used to teach multiplications.

    1. Hi Krista, I’d recommend simple and repetitive work balanced with mental math in the form of skip counting, multiplication facts and movement math. Maybe Kumon workbooks might work. Or you can make your own. Mastery of the multiplication facts can be tedious. Add some games to lighten the lessons.

    1. Hi Michaela, at that age, I would still concentrate on math games or mental math or real life math. My daughter showed interest in doing more sit down work at that age because she saw her older siblings doing it, so I bought her some math workbooks from the DollarTree for her to use. She did them for a while, then lost interest and then occasionally picked them back up again. It was mostly for fun, but that’s an option too if your child wants something more.

  4. I really want to try these books. How long would you say it takes to get through each set. For example, would it take the whole school year to go through the Geometry Set? Which grade did you use each one? I love your videos! You have been so helpful to me in my homeschooling journey.

    1. Hi Amber, I used the measurement in grade 4, fractions, decimals and percents in grade 5, geometry in grade 6 and 7 and algebra in grade 8. You can do fractions before measurements though.

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