Purple Grade K workbook featuring a fishbowl with two fish and a crab on the cover.

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Mathematical Reasoning A (Kindergarten)

Mathematical Reasoning A (Kindergarten)

Count, color, and puzzle your way through Kindergarten math with quick, clever challenges that build thinking skills from day one—no memorization marathons, just real problem-solving.

$38.99

4.8 (63 reviews)

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Ages5-6
GradesKindergarten
AvailabilityUsually ships in 1-3 days.
Product Code410-094
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Spiral Learning

Spiral Learning

Visual Learner

Visual Learner

Consumable

Consumable

Nonreligious

Nonreligious

Product Info
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Mathematical Reasoning A (Kindergarten)

Welcome to the world of numbers, shapes, and math that feels more like solving puzzles than filling out a workbook. With 282 colorful pages, Mathematical Reasoning Level A introduces kindergarteners to counting through 20, patterns, shapes, measurement, simple fractions, graphing, and early problem-solving skills.

The pages are bright, uncluttered, and designed for young learners who are still building confidence with pencil-and-paper work. Activities include matching, sequencing, comparing, classifying, and logic challenges that encourage children to think through problems rather than memorize answers.

One of the strengths of Mathematical Reasoning is its gentle spiral approach. Skills are revisited throughout the book, giving your child repeated opportunities to practice and strengthen concepts without the frustration of being expected to master them after a single lesson. The result is a program that develops both foundational math skills and the reasoning abilities that make future math easier to understand.

Mathematical Reasoning A (Kindergarten) Review

Review by One Luckey Wife

“Some reasons I like Mathematical Reasoning are because it is colorful, bright, fun and our daughter has really enjoyed doing the math work in it.”

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Topics/activities include Addition, Bar Graph, Calendar, Capacity, Coins, Count, Fractions, Language, Length, Likelihood, Match, Number Line, Odd/Even, Order, Pattern, Real World Problems, Shapes, Subtraction, Time, Weight, and Whole Numbers.

Publisher's Information
Publisher: The Critical Thinking Co™
Authors: Linda Brumbaugh & Doug Brumbaugh
Age Recommendation: 5 - 6
Grade Recommendation: K - 1st
Faith-Based: No
Consumable: Yes
License: Reproducible
Pages: 250
Size: 8.5" x 11.4"
ISBN: 0894558846
Format: Softcover
Copyright: 2006
Made in: China

Awards and Endorsements from:
  • Dr. Toy Best Picks
  • Mensa Recommended Materials for the Gifted
  • iParenting Media Award
  • Mom's Choice Awards Silver Medal for Excellence
  • Creative Child Magazine Book of the Year Award
  • Mom's Choice Awards Gold Medal for Excellence
  • Cathy Duffy 101 Top Picks for Homeschool Curriculum
  • iParenting Media Best Products
  • Creative Child Magazine Preferred Choice Award
  • iParenting Media Excellent Products
  • Cathy Duffy Top 100 Award
  • Dr. Toy Product of Excellence
  • Learning® Magazine Recommended Resource for Successful Teaching
  • Jenkins Group Moonbeam Children's Book Award, Silver Medal
  • Practical Homeschooling Reader Awards™ - Honorable Mention, Elementary Math Category
  • Practical Homeschooling Magazine 3rd Place Reader Award
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    REVIEWS
    What Our Customers Have To Say

    Customers earn Doodle Dollars for reviewing products they've purchased, and some promotions add an entry in a prize drawing. Rewards never depend on the rating given.

    4.8 out of 563 reviews
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    Customer photos

    1. June 26, 2024

      Good beginning math

      Sara W.

      We’ve done a couple of these in our home now and the kids love them. Will be doing one with our youngest again before too long. It sets them up well for the math you see program.

    2. May 27, 2023

      Love!

      Jasmine A.

      We used the PreK version and loved it! I’ve skimmed through this one and it looks to be just as great! Can’t wait to put it to use this upcoming fall!

    3. November 26, 2022

      Mathematical Reasoning K Buddy

      Clara R.

      This is the perfect complement to Math U See program. The logic and thinking skills are presented in a fun and engaging manner. My grandson calls it his "Math Buddy" book. We limit him to 3-4 pages per lesson. Great way to foster logic and thinking skills!

    4. August 17, 2022

      Builds logic and thinking skills.

      Pamela C.

      We love the logical approach to the Mathematical reasoning curriculum! Mathematical reasoning K builds logic and thinking skills with fun puzzle-like lessons. I find this level is light on instruction, so we use the Good and the Beautiful Math K in combination. My child is enjoying math and enjoys her "math puzzle" book.

    5. August 12, 2022

      Household Favorite

      Catlyn C.

      We love this series in our house! We always finish each workbook early because my daughter almost always wants to do more pages than I've planned for the day

    6. July 21, 2021

      AMAZING!!!!!

      DEBORAH K.

      We LOVE these workbooks. The only thing he didnt grasp were the riddles but the rest of it was engaging and simple enough to follow. I even got one for my 3 year old so HE could do "school" alongside us and that too was a big hit.

    7. May 25, 2021

      So fun!

      Tresa K.

      He doesn't know he's doing math. It's full of logical, math, and reasoning skills. It's fun and engaging. We end up doing 3-4 pages and he wants to keep going.

    8. March 31, 2021

      Autumn T.

      I’m using this with my preschooler. Some of it is review and some is new to him but he’s doing great with it. I’m happy I bought this in addition to Math U See Primer because this book is more colorful and fun for him.

    9. March 2, 2021

      Wide Range of Topics

      Stephanie S.

      My 5 yr old loves these math books. She went through the book that was lower then this level in a couple months so I purchased this to keep her love of math alive. She has found that she loves even and odd numbers right now. It doesn't just stick to one topic and beat it to death. It has various topics that it showcases for a few pages and then goes to something else and then a couple pages later comes back to those previous topics.

    10. January 7, 2021

      Fun & challenging

      Heidi C.

      We added this to our math curriculum mid year, and so glad we did. Our son enjoys the challenge of thinking outside the box. The book offers a slightly different set of questions and different wording.