Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to teach the sidestroke [title] Have your students lie on the floor on their left side. [step] Each student will eventually develop a side that they prefer-usually their dominant side-but when you're teaching them the basics, have them start on the left. That way everyone is on the same page.

Ending1: [substeps] However, if your students want to do the opposite, have them lie down on their side on their right side. That way they don't need to lie with their back to them and their arms hanging off the sides for a better level of space. Ending2: Not only will your students feel more comfortable at the beginning of the lesson, they'll appreciate the notion that they can lie down and recline. [title] Have each student kneel up on their right side. Ending3: [substeps] Don't force your students to lie on their stomachs-you want it to be a flat surface and not an arena. [title] Have them lay on their stomachs. Ending4: [title] Ask the students to extend their left arm above their head. [step] They should rest their head on their upper arm.

Answer format: ending1/ending2/ending3/ending4