The first three jumps are a trot exercise which should be set with a low oxer for jump #3.
#4 & #5 should be an in-and-out set at your current show level height. A Swedish oxer for #5 is the preferred setting.
A pole should be placed on the ground for the halt line.
Begin this exercise at a collected trot and keep in mind that you will need to leave the first exercise with enough canter to get through the corner and down to the in and out. The in and out must be jumped at a collected but powerful canter in order to immediately transition downward to a trot and to a halt by the mid-section of the long side of the ring.