This tool asks a few short questions on one topic area, then explains every answer you gave. For each wrong choice it names the idea behind the slip, suggests a lesson to repair it, and builds a small set of questions to try again.
It does not score you, predict a grade or diagnose anything. Its job is to point at the idea to revisit.
How do I use it?
- Choose a topic: signs and arithmetic, fractions and percentages, or algebra basics. Each topic has four or five questions.
- Answer each question by selecting one option. If you are unsure, select Not sure. If you would rather not try, select Skip.
- Press Check my answers.
- Read the result from top to bottom, then open the suggested repair lesson. Reset clears your choices.
Answer without a calculator and without looking anything up, so the result reflects what you can do now.
Example walk-through
The tool opens on Signs and arithmetic with one answer already chosen: for −3 − (−5), the option −8. Press Check my answers.
The result groups the slip under Sign reasoning: the signs were combined in a way that changes the value. The explanation for that question shows the correct path. Subtracting a negative is the same as adding its positive, so −3 + 5 = 2. On a number line, you start at −3 and move 5 to the right.
Notice what the tool does not say. It does not call you weak at negatives. It names one idea, sign reasoning, and points you to number sense and exact arithmetic, which includes ordering signed numbers on a number line.
The other three questions on that topic were not answered, so they count as skipped. They appear in the attempts list with full explanations and join the small repeat set together with the question you got wrong.
How do I read the result?
- Idea to repair: the misconception behind each wrong answer, in plain words, for example order of operations, adding fractions, choosing the percentage base or undoing operations.
- Shows up as: the questions where that idea appeared. If one idea appears twice, it is worth a proper look.
- Suggested repair lesson: the topic on this site that teaches the idea.
- Your attempts explained: every question with the correct reasoning, whether you were right or not.
- Small repeat set: the questions you did not get right, to try again after the repair lesson.
Some questions are worded the same way as common exam mistakes. For example, choosing 105 for “increase 80 by 25%” points to treating the percentage as a count of units. The repair route goes to percentages and changing bases, starting with reversing a percentage increase.
What are the limits?
The question bank is small and original, so it cannot cover a whole topic. One careless slip can also look like a misconception, which is why the tool suggests a repeat set instead of a conclusion.
There is no predicted grade, no diagnosis and no automatic tuition-need score. The tool stores nothing and sends nothing.
Which lessons explain the output?
The repair lessons are matched to the idea: sign reasoning and fractions go to number sense and exact arithmetic, powers to indices, roots and standard form, like terms and brackets to algebraic structure, and undoing operations to equations and formulas. If you want to plan the repair around your classwork, read locate the first step you cannot explain. The tools page lists the other aids.
When the same idea still slips after repair, our teachers can work through it with you in online one-to-one Mathematics tuition.