Common Core Standards
Grade 3
Reading RF.3.3.D
Read grade-appropriate irregularly spelled words.
Changing y's to i's can be frustrating. Tried and true rules like "i before e, except after c," will get you somewhere, but this is English, people. If there's one thing we like to do with our language, it's create a rule and then promptly break it.
This standard is about helping your kids navigate those spelling irregularities that we all know and love.