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Logic Countdown, Grades 3-4 [Paperback]

Bonnie Risby , Dean Crawford
4.7 out of 5 stars  See all reviews (13 customer reviews)

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Book Description

January 1, 2005 1593630875 978-1593630874
This classic book will excite students' imaginations while enriching skills in logical thinking. Logic Countdown problems are easy to incorporate into lesson plans and are formatted to enhance the fullest spectrum of curriculum areas while sharpening thinking skills. Challenging and instructional, these thought-provoking books present sequential exercises in logical reasoning that include relationships, analogies, syllogisms, sequences, deductive reasoning, inference, truth-values, and logical notation. Simple grids coupled with intriguing problems evoke enthusiasm and inspire students to higher and higher levels of thinking. Each book in this series builds on concepts presented previously in the series to offer a comprehensive logic adventure for young thinkers.

The skills students build by using this book are applicable to several areas of the curriculum. Academic skills used for reading, math, writing, and science all depend on the ability to perceive and define relationships and to form inferences. But, beyond the academic world, students will find logical thinking an integral part of everyday life.

This is the first in a three-book series designed to sharpen children's logical thinking skills. Once students master the skills presented in this book, they will be ready for new challenges in Logic Liftoff and Orbiting with Logic.

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Editorial Reviews


Blast Off With Logic is a series of three books that build upon one another at increasing levels of difficulty. Logic Countdown, written for grades 3–4, introduces relationships, analogies, sequencing, "all" and "no" statements, syllogisms, if-then statements, deduction, and making inferences. Logic Liftoff for grades 4–6 reviews and expands all of these topics, continues into deeper logical reasoning, and introduces logical notation. Orbiting with Logic for grades 5–7 builds on the previous two books, expands logical notation, and adds logic diagrams and logical fallacies. While it is possible to use any one of the books alone, they really work best as a sort of continuous course . . . Most of us parents will find many of the lessons new and challenging, so we should tackle them right along with our children to improve our own thinking skills. --Cathy Duffy, Cathy Duffy Reviews - January 1, 2009

About the Author

Bonnie Lou Risby grew up in the Illinois woodlands atop the limestone bluffs across the Mississippi River from St. Louis. These woods were her playground where she and her siblings camped out, played detective, and enjoyed the beauty of the outdoors in every season. After attending college at Southern Illinois University Edwardsville, she taught school in Columbia, IL, for 13 years. She has taught elementary school, middle school, and high school, concentrating on the subjects of French, English, and gifted education. When Risby helped write the grant to establish Columbia's Gifted Program in the early 1970s, there were few materials readily available that fit well with a one-period per week pullout program.

After the birth of her son, Risby retired from teaching and joined a family and marriage counseling practice for 12 years, continuing to write and create logic books in her spare moments. Retired from her therapy practice, she now works in a family business with her husband and son in Ballwin, MO. Risby has continued to write classroom books, chapter books, magazine articles, and books for young adults.

Besides writing, Risby loves taking float trips down Ozark streams, biking, long walks with her dog, gardening, family history, and travel.

Product Details

  • Paperback: 64 pages
  • Publisher: Prufrock Press (January 1, 2005)
  • Language: English
  • ISBN-10: 1593630875
  • ISBN-13: 978-1593630874
  • Product Dimensions: 10.9 x 8.5 x 0.2 inches
  • Shipping Weight: 2.4 ounces
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (13 customer reviews)
  • Amazon Best Sellers Rank: #49,229 in Books (See Top 100 in Books)

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Customer Reviews

Most Helpful Customer Reviews
13 of 14 people found the following review helpful
4.0 out of 5 stars Just what I wanted. March 15, 2007
I purchased this book for my 7 year old daughter as I didn't think she was getting enough logic problems in school, she has taken this book, and in a short amount of time has worked her way through at least half of it. It has challenged her, and kept her going back for more. It is a great feeling to see her sitting in her room working in her book by herself, because she wants to. I definately suggest this book for all 1st or 2nd graders who love to learn, or ones who need a little encouragement.
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5 of 5 people found the following review helpful
5.0 out of 5 stars Love this! May 9, 2011
Format:Paperback|Verified Purchase
Bought this for my 4th grader. I wanted to make sure my son was getting enough practice with Logic. I was fortunate enough to find this series. It's a great introduction to logic for young students. We're only doing a couple of lessons a week as we're also using another logic book. I liked it so much that I'm ordering this again for my upcoming 3rd grader and ordering the next in the series for my oldest.
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12 of 15 people found the following review helpful
4.0 out of 5 stars I like it well enough, with one major caveat. February 4, 2013
By Ulyyf
Format:Paperback|Verified Purchase
I got a copy of this book for each of my two nieces. We try to do one or two pages a week.

For teaching basic logic skills, I like the way this book is designed. However, I find that many times, especially in the analogies section, the exercises assume the children have knowledge that it isn't reasonable that all third and fourth graders will have.

For example, one of the problems is "Clydesdale is to horse as centipede is to arthropod". Well, my nieces aren't particularly interested in horses, so that's right out, and while they DO know that all centipedes are arthropods, due to spending many many hours in the bugs section of our local children's museum, I'm not sure all kids their age have that knowledge right at their fingertips. Another problem has the answer that person is to multitude as quail is to covey. I can tell you now that other than "murder of crows" the only term I use for a group of birds is "flock". I don't think I've ever even seen a quail in my life, nor have the girls outside of ABC books when they were little.

And these more unusual examples are interspersed with things like "stalk is to leopard like slither is to snake" or "teacher is to school as doctor is to hospital", so it's not like the author couldn't think of things that are more likely to be common knowledge.
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11 of 14 people found the following review helpful
5.0 out of 5 stars Alternative to Nonsensical Puzzle Books August 16, 2011
By Chris
Format:Paperback|Verified Purchase
I am impressed. I failed to truly relate the content based on the Contents page.

As I have mentioned amongst forum contacts and friends, most puzzle-type books do not impress me, and I often fail to understand the concept. However, this seems to be very appropriate in demonstrating analogies, relationships, syllogisms, sequencing, if-then statements, deduction, and inference in a manner that is not remedial but applicable to a child.

The lessons use those groups, statements, and examples of those concepts and ideas that are familiar to the child. That is to say that they use letters of the alphabet, directional placement, everyday toys, foods, beverages, et cetera.

So, I would start with Logic Countdown. I cannot see skipping this book. IMO, I find that you could start as late as the fifth (perhaps even the sixth) for a child that has not had any logic study. I also think that a third grader would have no problem understanding and reading the text.

I was pleasantly surprised at the amount of coverage and subject content. I like a simple approach to this topic at this age, and this fits us - without nonsensical puzzling that is.
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4 of 5 people found the following review helpful
4.0 out of 5 stars Logic March 22, 2013
Format:Paperback|Verified Purchase
Brain teaser. Bought it for my 7 yr old. Needs adult assistance at that age. Great for 8 and older. Would recommend fir use during summer break to keep the brain active
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3 of 4 people found the following review helpful
5.0 out of 5 stars Great Reproducible Logic Curriculum February 23, 2013
The puzzles focus on relationships, analogies, sequencing, syllogisms, as well as inferencing and deduction skills. These are reproducible books that lend themselves to use by homeschoolers and classroom teachers.

For the past few weeks, my oldest daughter has been completing two exercises a week from Logic Countdown. She enjoys them. Once in a while she has come up with another answer for the relationship exercises. Her answers are reasonable though and so I think that her answers are "right" even if they are different than the answers in the back of the book. For the most part, the answers are clear cut. I asked my daughter her opinion and she loves the book. She finds the exercises fun. I want my kids to look at language or mathematical puzzles as "fun". I believe this feeling will help them want to tackle problems they don't understand rather than shrink from them.

As a homeschooler, these books are great for use with gifted students who finish their work quickly. They are also great worksheets to give children when they're done with an assignment and waiting for your help.

As a classroom teacher, I wouldn't copy the pages of these books. Instead, I'd use 2-4 questions daily after lunch or recess to get my students brains to reengage. I'd write them on an overhead, smart board, or chalk board.

The biggest difference between these books and Evan-Moor's critical thinking series is the amount of teacher explanation and thickness of the books. Evan Moor gives a great deal of explanation for every pair of worksheets. (The Evan-Moor series also costs twice as much.) These books by Ms. Risby do not give such explanation. She gives an overview of the book's exercises at the beginning of each book.
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Most Recent Customer Reviews
5.0 out of 5 stars Logic
My friend told me about these workbooks and we love them! They really make you think, in fact, sometimes it takes a few of us to figure out the questions. Read more
Published 1 month ago by Lynn C.
4.0 out of 5 stars Useful exercises
Our homeschooler went through these, two per week (which wasn't much to ask). As with any number of "workbook"-type books, there's always a question whether the child is... Read more
Published 2 months ago by Lawrence M. Sanger
5.0 out of 5 stars Perfect for homeschoolers!
Logic and critical thinking are important subjects that we always add to our homeschool schedule. This book is quick and easy to use for the parent, as well as fun and challenging... Read more
Published 2 months ago by bluebell
5.0 out of 5 stars Very interesting book
I bought this book to prepare my daughter for GATE exam. Not only it helped her but she totally enjoyed it and was sad that it was over.
Published 7 months ago by V. Bhadra
5.0 out of 5 stars Great Intro to Logic Exercises
My son is using this workbook in our homeschool. He does find a challenge in some of the exercises but seems to enjoy doing them. He is eight. Read more
Published 8 months ago by Valvool
5.0 out of 5 stars easy yet challenging
tried with my 6 yr old who is in accl reading and math... and gifted.. a bit easy.. to begin with - makes him think but not very challenging.. Read more
Published 12 months ago by lv
5.0 out of 5 stars My 9 & 11 year olds like it...
This book is our first attempt at formal logic exercises. My boys seem to enjoy the material, and I plan to continue with the series.
Published 18 months ago by Mom to Three Boys
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