This lecture explains the first three forecasting techniques. These approaches will help us in prediction of the future demands. The example that we took was from seasonal variations.
We tried to explain the three main approaches.

0:00 Introduction to types of forecasting
1:39 Naive Approach
4:43 Moving Average Approach
6:22 two months moving average
10:10 three months moving average
12:58 Weighted Moving Average Approach

Exponential smoothing:
https://youtu.be/vE5xp2N13Ko