Sale price
$1248
Chapter Book · Ages 9–12 · October 1, 2022
A Knotty Problem
By David Cole · With Shannon O'Toole
A math club's future hangs in balance as friendships fracture and a move looms.
206 pages
4.3/5 Goodreads · 4 ratings
$12.95Save 4%
Children's book Author
DavidCole
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A cipher leads kids to a haunted house. Can they solve the mystery?
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A Knotty Problem
Chapter Book · Ages 9–12 · 2022
A math club's future hangs in balance as friendships fracture and a move looms.
At a glance
Book Stats
6
Authored
0
Illustrated
1
Collaborators
Chapter books
6
Publishing timeline
Books published each year, stacked by book type.
Publication timeline from 2018 to 2022.
Book mix
The share of the catalog represented by each book type.
Book type breakdown: 6 chapter books.
6
books
Complete bibliography
All David Cole Books
Every title in the Bookroo library, ordered from newest to oldest.
Sale price
$1248
A Knotty Problem
Chapter Book · Ages 9–12 · 2022
A math club's future hangs in balance as friendships fracture and a move looms.
Sale price
$1135
An Incorrect Solution
Chapter Book · Ages 9–12 · 2021
Can math solve the challenges of new teachers and classmates?
Sale price
$1135
The Math Kids
Chapter Book · Ages 9–12 · 2021
A cipher leads kids to a haunted house. Can they solve the mystery?
Sale price
$1135
An Unusual Pattern
Chapter Book · Ages 9–12 · 2019
Can math solve a cryptic poem and clear a friend's name?
Sale price
$1135
A Sequence of Events
Chapter Book · Ages 9–12 · 2019
A missing teammate and a kidnapping test The Math Kids' problem-solving skills.
Sale price
$759
The Prime-Time Burglars: The Prime-Time Burglars (Volume 1)
Chapter Book · Ages 8–12 · 2018
Three kids use math to tackle neighborhood burglaries and bullies.
Creative company
Collaborators
The authors and illustrators who share the credits across David Cole's books.