Math Builders - 5-minute spaced repetition for math fact fluency

Hey Product Hunt, I built Math Builders after seeing the same pattern at home over and over: the lesson usually was not the issue, recall speed was. When facts like 6×7 or 8+9 were shaky, everything after them felt heavier. Homework took longer, confidence dropped, and even kids who understood the concept started to feel stuck. I did not want to build another full curriculum or another 30-minute drill block. I wanted something short enough to do before school, calm enough to repeat tomorrow, and clear enough that a parent could actually see what was improving. So Math Builders uses 5-minute sessions plus spaced repetition to help kids build automatic recall for multiplication, division, addition, and subtraction. It is free to start, and teachers can also use one classroom of up to 25 students for free. Happy to answer anything about the spaced-repetition model, how this differs from flashcards or XtraMath-style drills, or how parents and teachers are using it.