The Dig the Problem Series

Each Dig the Problem book contains:
– One intriguing mathematical problem to dig into
– Exercises to guide the child through the problem exploration process
– Prompts for the child to look for and verify patterns on their own
– Space for the child to ask extension questions beyond the problem itself

Book Title	Paperback	Suggested grade level and Prerequisites
Dig the Problem of Connecting Dots		Suggested grade level: Grade 4+ Mathematical knowledge required: none.
Dig the Problem of Looping Dots		Suggested grade level: Grade 4+ Mathematical knowledge required: additions within 100 and multiplications within 20.
Dig the Problem of Breaking Numbers		Suggested grade level: Grade 4+ Mathematical knowledge required: additions and subtractions within 100.
Dig the Problem of Scrambling Cards		Suggested grade level: Grade 4+ Mathematical knowledge required: additions and multiplications within 1000 and the Distributive Property.
Dig the Problem of Collecting Sticks		Suggested grade level: Grade 5+ Mathematical knowledge required: division within 20 with remainders.

The Poke the Problem Series

Download a free pdf sample of the first three books in this series.

Book Title	Paperback	Prerequisites and Related Math Topics
Poke the Problem of Connecting Dots		Mathematical knowledge needed to start exploring: – none Related mathematical topics to look up: – combinations and permutations of distinct objects – Euler’s Polyhedron Formula – cycle lengths of planar graphs
Poke the Problem of Adding Numbers		Mathematical knowledge needed to start exploring: – multi-digit addition and division with remainders Related mathematical topics to look up: – divisibility, prime factorization, GCD and LCM – proof by contradiction and induction – Pisano periods and Lucas sequences
Poke the Problem of Dividing Squares		Mathematical knowledge needed to start exploring: – areas of triangles – fraction calculations Related mathematical topics to look up: – lengths in similar figures – visualization and volumes of 3D shapes
Poke the Problem of Scrambling Cards		Mathematical knowledge needed to start exploring: – counting principles Related mathematical topics to look up: – combinations and permutations of distinct objects – derangements and simple permutations – recursive expressions
Poke the Problem of Collecting Sticks		Mathematical knowledge needed to start exploring: – counting to 20 Related mathematical topics to look up: – division with remainders – nim, greedy nim, circle nim – binary numbers and operations

The Make a Problem Series

Book Title	Paperback Full Colour (Most Popular)	Paperback Black and White	Hardcover Full Colour	Hardcover Black and White
Make a Problem of Squares and Tiling
Make a Problem of Lights and Flickering
Make a Problem of Numbers and Knighting (Most Popular)
Make a Problem of Magic and Sliding
Make a Problem Collection Volume I			Coming Soon…	Coming Soon…
Make a Problem of Subgrids and Walking
Make a Problem of Paths and Branching	Coming Soon…	Coming Soon…	Coming Soon…	Coming Soon…

Other Books