# Logic and reasoning

Here is a list of all of the skills that cover logic and reasoning! These skills are organised by year, and you can move your mouse over any skill name to preview the skill. To start practising, just click on any link. IXL will track your score, and the questions will automatically increase in difficulty as you improve!

## Year 10 skills

- Y.1 Identify hypotheses and conclusions
- Y.2 Counterexamples
- Y.3 Conditionals
- Y.4 Proofs involving angles
- Y.5 Proofs involving parallel lines I
- Y.6 Proofs involving parallel lines II
- AA.7 Proving triangles congruent by SSS and SAS
- AA.8 Proving triangles congruent by ASA and AAS
- AA.9 Proving triangles congruent by SSS, SAS, ASA and AAS
- AA.10 Proofs involving corresponding parts of congruent triangles
- AA.11 Proofs involving isosceles triangles
- BB.11 Proofs involving triangles I
- BB.12 Proofs involving triangles II