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2011 PUZZLE OF THE YEAR AWARD Creative Child Magazine
2010 Parents' Choice Silver Award Winner!
There is a state of timelessness where the only thing that matters is solving the Aba-Conundrum in front of you.
The joy of vibrant, wooden beads on a shining red abacus… the surprising, “of course!” when realization of the answer presents itself in gliding beads.... the satisfaction of documenting your success with erasable marker. It’s all so good.
Eyes, hands, and mind - all in flow to find the puzzle’s solution. Aba-Conundrums, modeled on use of the traditional Abacus, is a series of math puzzles that will excite, motivate, and intrigue both kids and adults.
Inherent in design of this mathematical manipulative - is practice with place value, logical thinking, computation, even investigations with fractions and prime numbers. Aba-Conundrums is one mathematics toy and tool that you won’t want to miss!
From simple to complex, the 120 Aba-Conundrums puzzle pages are arranged in increasing difficulty. Whether the Aba-Conundrums puzzles are solved solo, with a friend, or in a classroom situation, (reproducible materials included), these math puzzles will be visited and revisited until the mystery of each set of clues is solved.
Shuffle into Logic. Slide into Math. Calculate the Clues!
Aba-Conundrums Abacus & Mathematical Puzzles:
•Mathematical puzzles based on the abacus
•Fascinating, mind challenging activity
•Builds proficiency in logic & deductive reasoning
•Provides practice with place value, computation, fractions, prime numbers
•120 puzzling Aba-Conundrums ordered from easy to most difficult
•High quality wooden abacus with sliding wooden beads
•Brilliantly painted red, yellow, and blue components
•Highly durable write-on/ wipe-off puzzle book
•Reproducible information included for classroom use (Make copies of abacus template & laminate, provide seeds or buttons.)
•Fully safety tested
The easiest: Clue 1: the 10's place digit is a 6. Clue 2: the 1's and 10's places have the same number of beads. Clue 3: The 1's and 10's digits are not the same.
The most challenging: Clue 1: There are twice as many upper beads as lower beads. Clue 2: The number is less than 500,000. Clue 3: The first and last digits are the same.