Preschool Sorting Big and Small
Sorting big and small just got a whole lot cuter with this ocean-themed preschool activity! If your little learners are all about sharks, whales, and squids (oh my!), these two sorting worksheets will fit right in with your under-the-sea theme. Not only are they working those comparison skills, but they’re also flexing their fine motor muscles with some cutting practice. It’s a great way to reinforce size vocabulary and observation without turning it into a snooze-fest. Bonus: zero glitter involved.
Why do Preschoolers need to know Big and Small?
Understanding the concept of big and small is more than just knowing which object takes up more space—it’s a foundational math and thinking skill for preschoolers. When kids sort by size, they’re learning to observe, compare, and categorize, all of which are essential for logical thinking and early problem-solving. It also boosts their vocabulary and ability to describe the world around them. Plus, recognizing differences in size lays the groundwork for understanding measurement, spatial awareness, and even number sense down the road. So yes, cutting out whales and matching them to baby whales is adorable—but it’s also brain-building work!
What Supplies Do I Need?
You won’t need a boatload of materials here. Just the basics:
- Printed worksheets (grab both pages!)
- Child-safe scissors
- Glue sticks
- Crayons (optional, but hey—coloring is always a win)
What Do I Need to Do to Prep for This Activity?
Not much, which is the best kind of prep.
- Print both worksheets—preferably on regular printer paper (cardstock if you want to get fancy).
- Round up scissors and glue sticks.
- If you’ve got a kiddo who isn’t scissor-ready yet, pre-cut the bottom pieces ahead of time.
Books for Preschoolers about Big and Small
These picture books are perfect to go with a unit on teaching big and small.
Other Size Ordering Activities:
Big and Small Matching :
Your preschooler will look at the larger ocean animals at the top of the page, then cut out the smaller animals at the bottom and glue the matching one underneath each big version.
Big and Small Sorting:
This time, all the animals at the bottom need to be sorted into one of two boxes: big or small. Let your child decide where each animal goes, and talk through the choices as they sort.
Bonus Ideas to Make It More Fun or Educational
- Add vocabulary practice: Use words like “enormous,” “tiny,” “massive,” “teeny” to build language.
- Storytime tie-in: Read Way Down Deep in the Deep Blue Sea or Commotion in the Ocean before doing the activity.
- Go 3D: Gather some plastic ocean animals and sort them by size in a sensory bin filled with blue rice or water beads.
Adaptations for Different Skill Levels
- Younger or new-to-scissors kids: Pre-cut the animals and let them focus on sorting and gluing.
- Older or more confident kiddos: Have them color the animals before cutting and try sorting them without assistance.
- Extra challenge: Ask them to explain why they think something is big or small, or to line them up from smallest to biggest.
More Ocean Resources:
The National Geographic Kids has great ocean videos
Grab your Preschool Big and Small Cut and Paste Worksheets Here
Angela is the Homeschool Encourager for the Overwhelmed & Under-Caffeinated and the Chaos-to-Confidence Specialist behind Schooling with Grace. With a no-fluff approach, a dash of humor, and a whole lot of heart, she helps homeschool moms cut through the chaos, ditch unrealistic expectations, and teach with confidence.