Please read the text below:
Mind Mapping is basically a thinking, writing and memory technique  developed by Tony Buzan in the 70s of last  century. It is a visual  thinking technique that helps you to  categorize key words in main and  subtopics in order to draw  a graphic overview with  these key words,  colors, drawings, relationships and icons. This thinking technique increases  your creativity, learning and problem solving ability and will  improve your  planning ability, helps designing processes  and facilitates  to remember important  things. When applied correctly and consistently  you will be able to organize your  thoughts, make better use of your time, increase your ability to prioritize, facilitates  communication and getting  the  whole picture, helps you to follow the progress of  projects, capture  share and apply knowledge. Anyone from 8 years  old can learn  mind  mapping. It can be used in private and work life. For example, to plan  your  vacation or a  renovation, preparing a personal growth plan, select  a school for the  kids, analyse and write plans, meet with more fun  and  result, set up and manage  projects, facilitate collaboration, improve  time utilization, structure conversations and  stimulates to build a shared  mental model.
Assigment:
Please draw two columns and put the main topics on the left and subtopics on the right.
Main topics
Sub topics
Mind Mapping is basically a thinking, writing and memory technique
developed by Tony Buzan in the 70s
increases  your creativity, learning and problem solving ability
and so on
and so on
........
......
please finish
Now compare your notes with someone else.
1) Why are there any differences? What is causing this?