Teacher Discussion Forums

I NEED AN ACTIVITY TO INTRODUCE APRIL FOOL'S DAY FOR MY 16-17 YEARS-OLD STUDENTS. I WOULD LIKE TO DO A KIND OF TRICK OR PRANK AS AN INTRODUCTION WITHOUT THEM KNOWING IT. I KNOW ONE BUT I THINK THEY KNOW IT (TELLING THEM THAT THEY HAVE TO READ SOME QUESTIONS AND THEN START DOING THEM. THEN THE FIRST ...