Via this column, we'll explore one grammar rule each week. If you have a grammar question you'd like me to address, please drop me a line at grace.lavigne@prnewswire.com and I'll do my best to answer it.

It's August, so no matter where you are in the Northern Hemisphere, it's safe to assume you've probably been encountering a lot of creepy crawlers recently.

Fun fact: It turns out that some flying insects actually move towards a light -- even though it ends up zapping them to death -- because they use the sun and moon to navigate their courses. Insects that are attracted to light include moths, flies, crane flies, mayflies, beetles and more, according to About.com. They don't realize that your porch light is actually leading them toward a buggy death trap!

This bring us to our short grammar discussion today: When do we use towards vs. toward?

Main Rule: Toward and towards can be used interchangeably.

Either word is correct, although North American English speakers tend to prefer toward, while other English speakers (specifically British) tend to prefer towards, according to Grammarist.

Examples:

• "No, don't go towards the light!" the caterpillar screamed to the moth. But it was too late.
• The beetle seemed hypnotized as it moved toward the light bulb, ending with a pop and sizzle.

Stop the bug annihilation -- turn your lights out!

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image via Flickr user sapienssolutions