How do I understand the basics of British Politics?

The British government is made up of two houses: the Hosue of Commons (the lower house) and the House of Lords (the upper house). The House of Commons is often seen as more important and active than the House of Lords. The House of Commons is made up of MPs voted for by a constituency. The party with the majority of MPs voted for in an election (usually held every 5 years) wins the election meaning the head of that party becomes the Prime Minister. Laws are passed through the House of Commons and then the House of Lords - both houses vote on laws to pass them or delay them or to dissolve them - we can go into that in more detail later. A good way to understand how MPs and the Prime Minister act is to watch Prime Ministers Question Time broadcasted by the BBC on Wednesdays.