You can use the arrow keys (left and right) to move Banana Man. You can also jump by pressing the space bar, but if you want to go forward when jumping, press space while you are not holding the arrow key that moves you where you want to go. (Press space and THEN the arrow key.) Then you can move Banana Man. Press c to go to the chalkboard. Press h to go to the hall (both are in the school). Have fun playing and remember, THIS IS STILL A WORK IN PROGRESS. P.S. I updated the game so that if you keep following the sidewalk to the left, it takes you to Banana Man's house.
Credit to @popcornwaffle for helping me with the code! She was VERY helpful because I am not used to Scratch or coding things.