Computer program

I tried three program at code.org. The first program i did was to control and move the angry bird to the right spot. It was pretty easy at first. I got in trouble when i moved on though. There was a commander block to control the bird's movement when it faces a path, either turn left, right or go straight. It was little confusing for me. Luckily, I figured it out finally by trying over and over again. The second one was called Lightbot. It is kind of like the angry bird one. You draw the movements into the blocks to move the little robot to the right spots and light up the light. It was easy. The last thing i did was AppInventor. It was really cool but complicated. You can create all kinds of apps you can think of. The hardest part for me was to understand what those component do. I would like to see the app i made really works on the tablet or phone. That would be awesome.