Curiculum Battle Royale: Massachusetts v.s. New York

We are trying to figure out the Math Curriculum Requirement for 4th graders in New York / Massachusetts, and choosing one of the standards to work with for our game Fractionauts.

One of the things we talked about for Fractionauts is the addition of arithmetic operations in the game, namely subtraction, multiplication and (this one is a bit intense) division. Turns out, a fourth grader in both these states would only need to know addition and subtraction for fractions inside 20. This would play well into Fractionauts' mechanics, since we already have addition down, and subtraction can be removing fuels from the tank into some empty storage units. The limitation of 20 might make level progression a bit repetitive, so we would need to add something more to make the game interesting. e.g. Timers and score multipliers. One of the things it mentioned was the multiplication of fractions with whole numbers. This could be implemented in the game by showing things like "three containers of 2/7 fuel"

As for the requirements, NY and MA are very similar about them, so similar that the battle royale resulted in a draw. Soooo do they both survive or do they both explode now?

• Addition and Subtraction under 20
• Understanding of multi-digit multiplication and division
• Understanding of relationships between multiplication, division, addition, and subtraction.
• Geometry: Draw angles and lines, and identifying shapes based on their lines and angles.
• Unit Conversion
• Measurement. One of the requirement is Measuring Angles.