Do not let the students try for too long Pro Preview

As usual, do not let the students try for too long. Preferably, they should construct the vehicle on their own but if you see that they have been struggling for more than fifteen minutes and have not achieved any sufficient results, you can advise them to look at some of the previous constructions for ideas or you can assist them as well. The aim of the exercise is for students to come up with their own ideas but it is also important that they have finished the constructions by the middle of the lesson.