# Applications & Interpretation HL Key Concepts

### Short Summary Videos for AI HL Students

~ Last updated: April 23, 2021 ~

###### #1 IB Math Resource

Revision Village was ranked the #1 IB Math Resources by IB Students & Teachers in 2020 & 2021.

###### 34% Grade Increase

Revision Village students scored 34% greater than the IB Global Average in their exams (2020).

###### 70% of IB Students

More and more IB students are using Revision Village to prepare for their IB Math Exams.

##### What are the AI HL Key Concepts?

The IB Math Applications and Interpretation (AI) HL Key Concepts section is one of the four main features on Revision Village for AI HL students (in addition to Questionbank, Practice Exams and Past Papers). The Key Concepts section includes a carefully planned set of AI HL Exam Revision Videos that students can use to refresh specific concepts (e.g. Differential Equations using Euler’s Method) that they may have missed or misunderstood in class. The revision videos typically range between 5 and 10 minutes in length and are a short and concise way for students to quickly refresh a concept, before practicing exam questions, either in the Questionbank or Practice Exams section of the Revision Village website.

##### How should I best use the AI HL Key Concepts?

A great way to improve in mathematics is by practicing lots of questions, but sometimes we forget key pieces of theory. Itâ€™s recommended that students use the AI HL Key Concepts in conjunction with solving exam questions. Stuck on a specific question? Go to the Key Concepts section and watch one of the revision videos that recaps the theory. Itâ€™s recommended that students then return to the original question and try and solve it again.

##### Do the AI HL Key Concept videos replace my textbook?

This is not the aim of the AI HL Key Concept section on Revision Village. These videos are short and concise and aim to â€˜recapâ€™ the theory, as opposed to teaching and explaining the theory, which is the purpose of textbooks. The AI HL Key Concept section on Revision Village aims to support students’ revision process by providing an easy way to quickly recap the concepts that occur frequently on Applications and Interpretation Higher Level examinations.

##### Who are the teachers in the AI HL Key Concept videos?

The AI HL Key Concept videos on Revision Village are taught by experienced IB Mathematics teachers and examiners, who are passionate about teaching IB Math AI HL concepts in a simple, intuitive and engaging manner. The team is dedicated to helping each and every student achieve their best possible IB Mathematics grade.

More IB Math AI HL Resources

– Trusted by 350,000+ IB Students Worldwide –