2010 Parents' Choice Gold Award winner - Parents' Choice Foundation

Editor's Choice Award for Excellence in Design - Children's Technology Review

"The challenge is bite sized and addicting" - Children's Technology Review - www.childrenstech.com

"I really enjoyed Sums Stacker. It’s got charm and I love the twist it puts on practicing Math." - www.theiphonemom.com

"This is a great, fun way to improve math fluency without boring drills." - www.bestkidsapps.com

"Deceptively simple, this aptly named game holds contagious appeal for many age groups." - Parents' Choice Foundation - www.parents-choice.org

Sums Stacker is a "Math Doodles" activity that provides plenty of addition and subtraction practice, within a recreational math setting. The mathematical puzzle allows users to play with different representations of numbers, while developing their number sense to create strategies to help them solve problems.

 

THE PUZZLE: Blocks with values are piled into three stacks. Each stack is randomly assigned a target sum. Drag values from stack to stack until the sums of each stack equal the target sums.

VALUE REPRESENTATION OPTIONS:

· Dice
· Hole Tiles
· Fingers
· Numerals
· English Words
· Spanish Words
· Roman Numerals
· Random Design

 

 

SOLVE MODE: Strategically solve five random sets in the fewest number of moves. Receive a smiley face for each puzzle solved.

RACE MODE: Rack up as many points as you can solving puzzles, before time runs out. The timer is represented by a tab of paper that works its way around the edge of the screen.

 

 

EASY MODE: All three target sums are shown.

HARD MODE: To make things a little bit harder, one of the target sums is left as an unknown.

 

MATH GOALS:

· Number & Operations
· Number Sense
· Addition
· Subtraction
· Problem Solving
· Mathematical Reasoning
· Math Enjoyment