Geometry Strategy is a challenging visual strategy game for two to four players that will be enjoyed most by players who like chess and visual puzzles. It can develop strong working knowledge of surface area and volume. Each player starts with 10 well-made geometric pieces including a sphere, helix, and dodecahedron. Each player has his own color and can choose any set-up on his own quadrant of the board. The goal is to have one's sphere reach the center of the board while preventing opponents from the same objective. Pieces can move one or two squares at a time, and can defeat another player's piece depending on which of the challenges is in play: volume, surface area, or number of flat surfaces. Players are provided with the ranking list depending on the challenge which they can consult as needed to decide how they want to move and which piece wins the challenge. The challenge can change during the course of the game, so players need to be careful that their strongest piece can suddenly become the weakest. The game requires visual-spatial awareness and reasoning, and a lot of working memory tracking the different types of pieces and their relative values in the current challenge. While not everyone will enjoy this game, it develops the same abstract reasoning and flexible thinking skills as chess with the benefits of shorter games, attractive shapes, and the option to play with up to four people. Note that though the game has students using geometrically correct comparisons, students are never required to think through and apply geometric principles independently.

• Provides sufficient and varied types of practice problems to maximize understanding and generalization of the targeted skill/concept
• Manufacturer claims alignment with Common Core/Known Standards
• Presents educational concepts accurately
• Explains answers so students can learn from mistakes
• Better for teaching the skill to new or struggling learners
• Better for practicing or refreshing the skill
• Skills are practiced through authentic, meaningful problems (not just rote practice)

• Appropriate for a broad age range to use and enjoy
• Visually appealing to children in the target age range
• Adults would enjoy playing with a child
• For electronic games, gives positive or encouraging feedback
• Offers ongoing, progressive challenge
• Overall - Enjoyable. Given the option, students would choose this option

• Provides teaching guidance for adults to support the child and set appropriate goals
• Student should be able to use independently after first use
• Student graduates to the next level or topic only after meeting a benchmark
• Can effectively understand and monitor student's progress (email report or in product)
• Does not require excessive set-up time after first time use
• Can be fun as a single player game
• Multi-player game which fosters collaboration or cooperation
• Well-made for the cost
• For electronic games, can play without sound
• For electronic games, allows user to save work
• For electronic games, voice/sounds are appealing and pronounces words properly
• Provides options to play in languages other than English/Good for ELL
• Presents information in multiple formats (voice over, pictures and text, etc.)
• Overall - Easy to use

• Abstract Reasoning
• Directions may be confusing for students using independently
• Attention
• Problems or examples are not interesting for the target age range
• Directions may be confusing for students using independently
• Visually distracting with too many pictures, problems or moving objects
• Flexible Thinking
• Directions may be confusing for students using independently
• Organization
• Problems or examples are not interesting for the target age range
• Directions may be confusing for students using independently
• Spatial Perception
• Requires scanning in multiple places for words, objects or numbers
• Visual Discrimination
• Requires scanning in multiple places for words, objects or numbers
• Visually distracting with too many pictures, problems or moving objects
• Working Memory
• Requires scanning in multiple places for words, objects or numbers
• Directions may be confusing for students using independently

Geometry strategy is an exciting game for bold and courageous players, where the strategic mind and the different piece's qualities will win the game. Can you protect your sphere from aggressive tetrahedrons and hunting cones on your way to the target - the bullseye? Can you - and should you - challenge your competitor's pyramid with your cylinder? Is attack always the best defense when facing a solitary prism? Is your strategy valid all though the game - even as the conditions are suddenly changing.