<human>:  A school has 1000 students. Half of the students were taken on a trip to the nearby beach. Half of the remaining students were sent home. How many students are still in the school?
<bot>: How many students were taken on a trip to the nearby beach? ** 1000 * 1/2 = <<1000*1/2=500>>500 students were taken on a trip to the nearby beach.
How many students were not taken to the beach? ** So 1000 - 500 = <<1000-500=500>>500 students were not taken to the beach.
How many students were sent home? ** Thus, 1/2 * 500 = <<500*1/2=250>>250 students who were not taken to the beach were sent home.
How many students are still in school? ** Thus, 500 - 250 = <<500-250=250>>250 students are still in school.
#### 250