Step 1
Diagnose. Always start with data.
You cannot coach what you cannot see, and report cards don't show it — grades bundle understanding with homework compliance and classroom behavior. What you want is an instrument that measures the child against the skill map itself.
The best widely available one is MAP Growth. But the summary RIT score your school sends home is the least useful part of it. Request the full instructional report — it breaks performance into goal areas (Number & Operations, Algebraic Thinking, Geometry, Measurement & Data) and down to concept-level strengths and weaknesses. That's the treasure: not 'she's at the 60th percentile' but 'she's strong in geometry and shaky on place value and fractions.'
If your school doesn't use MAP or won't share the detail, you're not stuck: families can administer MAP Growth directly through Homeschool Boss for about the price of a pizza dinner — twice a year is plenty to establish a baseline and measure whether what you're doing works.
Never intervene on a vibe. Diagnose first, always. Thirty dollars of assessment saves three thousand dollars of unfocused tutoring.