⭐️ https://www.cognito.org/ ⭐️

** WHAT'S COVERED **
1. Defining arithmetic sequences.
2. Understanding the nth term expression for an arithmetic sequence.
3. How to use the nth term expression to calculate the value of any term in the sequence.
4. A two-step method for finding the nth term expression:
Finding and using the common difference.
Finding and using the '0th' term.
5. Worked examples for sequences with positive, negative, and decimal common differences.
6. How to check your derived nth term expression is correct.

** EXAM BOARD INFO **
This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course

** CHAPTERS **
0:00 Intro & Defining Arithmetic Sequences
0:36 What is the nth Term Expression?
1:19 Using the Expression to Find Terms
2:25 How to Find the nth Term Expression
3:50 Example 2 (Negative Difference)
4:41 Example 3 (Decimal Difference)
5:14 Checking Your Expression

** PLAYLISTS **
   • GCSE Maths (9-1)  

   • GCSE Biology (9-1)  

   • GCSE Chemistry (9-1)  

   • GCSE Physics (9-1)  

   • Alevel Biology  

#GCSE #KS3 #Maths #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE #IB #AP