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Catching up

How to Help Your Child Catch Up in Math: Start One Step Below Where It Breaks

By Knomi Learning · Updated

The short answer

To help your child catch up in math, do not start over and do not just do more homework. Find the specific earlier skill the current topic breaks on, practise that one skill in short daily sessions until it is quick and easy, then go straight back to the current topic and check that it now works. Repeat for the next gap. Most kids are missing a few skills, not a few years, so this is usually weeks of work, not months.

  • Go down to the skill that breaks, fix it, then come straight back up.
  • Short and daily beats long and weekly: 15 to 20 minutes is plenty.
  • A skill is fixed when it is right and quick, not just right.

Why more practice on the current topic does not work

When a child is struggling, the natural move is more of the same: extra worksheets on the topic the class is on. If the trouble is underneath, that just repeats the same failure. A child who cannot quickly find equivalent fractions will miss the same ratio table problems on the twentieth try as on the first.

Starting the whole year over fails the other way. It is slow, it is boring for the parts your child already knows, and it tells them they are "behind", which is rarely true. Most of what they know is fine.

The method: step down, fix, come back up

  1. Find where it breaks. Take a problem your child missed and have them talk you through it. Note the moment it goes wrong. Our guide on how to tell if your child has a math gap has a ten-minute version.
  2. Step down one skill at a time. Give one easy problem on the skill underneath that moment. Keep stepping down until a skill is quick and easy. The one just above it is the gap.
  3. Fix only that skill. Short daily practice on just the gap, with lots of easy wins first. Use pictures (number lines, fraction bars, arrays) before rules.
  4. Come straight back up. As soon as the gap is quick, return to a problem from the current topic. This is the step most catch-up plans skip, and it is the one that shows your child the work paid off.
  5. Repeat for the next gap. There may be two or three. Each one usually goes faster than the last.
  1. 6Reciprocals and Mixed NumbersGrade 6, Dividing Fractions
  2. 6Meaning of Fraction DivisionGrade 6, Dividing Fractions
  3. 5Multiplying Fractions by FractionsGrade 5, Multiplying Fractions
  4. 4Making Equivalent FractionsGrade 4, Equivalent Fractions
  5. 3Multiplication Fact FluencyGrade 3, Multiplying Within 100
A real path down and back up, from Knomi's maps. A 6th grader stuck on dividing fractions might step down to multiplying fractions, then to equivalent fractions, and find the trouble at multiplication facts. Fix the facts, then climb back: each step up goes quickly once the base is solid.

A four-week plan

WeekWhat to doHow you know it worked
Week 1Find the gap with the step-down check. Start 15 minutes a day on that one skill, easy problems first.You can name the gap in one sentence, like "equivalent fractions".
Week 2Keep practising the gap, now with mixed and slightly harder problems. Add one current-topic problem at the end of each session.The gap skill is right and quick, without pictures.
Week 3Mostly current-topic work. Open each session with two warm-up problems on the old gap. Check for a second gap with the same step-down method.Current homework goes noticeably better. Mistakes change kind.
Week 4Fix the second gap if there is one, the same way. Keep the warm-ups.Your child does a current-topic problem alone and explains it.
Adjust the pace to your child. Some gaps close in three days, others take two weeks.

What helps most

  • Keep sessions short. 15 to 20 minutes, every day or nearly. A tired brain practises mistakes.
  • Start with wins. Open with three problems you know they will get right. Confidence is part of the fix.
  • Pictures before rules. A fraction bar shows why 2/3 = 4/6. "Multiply top and bottom by the same number" only sticks once the picture makes sense.
  • Say what you are doing and why. "We are going back to equivalent fractions because ratio tables use them. Then we will come back." Kids work harder on a step when they can see where it leads.
  • Do not drill what is already solid. Skip what your child can already do quickly, even if the worksheet includes it.

How Knomi does this for you

This step-down, fix, come-back-up loop is what Knomi is built around. Every topic on Knomi's map knows which earlier skills it rests on, across grades. While your child practises, Knomi traces each miss to the earlier skill it points to. When the same one keeps coming up, Knomi says so, takes your child down to review it, and then brings them back to the topic they were on.

You can look at the map for any grade without an account: Grade 4, Grade 5, Grade 6, Grade 7 or Grade 8. Each topic shows what it needs first.

Questions parents ask

How long does it take to catch up in math?

It depends on how many gaps there are, not on how many grades "behind" a child seems. One gap often closes in one to two weeks of short daily practice. Most kids have a few gaps, so a month of steady work changes a lot.

Should my child repeat last year's math?

Usually not. Repeating a whole year spends most of the time on things your child already knows. It is faster to find the specific skills that are missing and practise those, then return to grade-level work.

How much math practice per day is enough to catch up?

Fifteen to twenty focused minutes a day on the gap skill is plenty for most kids. Short daily sessions work better than one long session a week.

Can my child catch up in math over the summer?

Yes, summer is a good time, because there is no new topic piling on top. Use the same method: find the gaps from last year's struggles, fix them one at a time, and finish each week with a grade-level problem.

Let Knomi find the gap for you.

Knomi teaches one topic at a time, traces a struggle to the earlier skill behind it, and fixes that first. Open the map and look around, no account needed.

Open the map