Looking for a hands-on way to help preschoolers learn their letters? This letter matching sensory bin combines sensory play with early literacy skills to create an engaging alphabet activity children will want to play again and again. Best of all, you can easily transform it into a glow-in-the-dark learning experience with a blacklight for even more excitement!

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Why You’ll Love This Letter Matching Activity
Letter recognition is one of the most important early literacy skills children develop before learning to read. While worksheets have their place, preschoolers learn best through meaningful play.
This simple sensory bin encourages children to search, identify, and match uppercase letters while strengthening fine motor skills and visual discrimination. Because the activity feels like a game, children often spend much longer practicing than they would with traditional letter work.
When you’re ready for something new, simply dim the lights, turn on a blacklight, and watch the activity become a magical glow-in-the-dark letter hunt!
Skills Children Practice
This activity encourages:
- Letter recognition
- Uppercase letter matching
- Visual discrimination
- Fine motor development
- Hand-eye coordination
- Alphabet knowledge
- Concentration
- Sensory exploration
Supplies
You’ll need:
- Poly pellets
- Plastic storage bin
- Hot glue gun
- Neon hot glue sticks
- Silicone baking mat or metal tray
- Blacklight (optional for the glow activity)
Safety Note: Poly pellets and small letters can be a choking hazard. Always supervise children during sensory play and use this activity only with children who no longer mouth objects.
How to Make the Letters
Using neon hot glue sticks, carefully draw uppercase letters onto a silicone baking mat or metal tray. Once the glue has completely cooled, gently peel the letters away.
These homemade letters are flexible, durable, inexpensive to make, and can be reused for many different alphabet activities.

How to Play
Invite your preschooler to search through the sensory bin to find hidden letters.
Each time they discover one, encourage them to:
- Name the letter.
- Match it to the same letter on the alphabet chart.
- Trace the shape of the letter with their finger.
- Say the letter sound.
- Return to the bin and search for another letter.
Children naturally repeat these steps over and over, giving them lots of meaningful exposure to the alphabet.

Make It More Challenging
As your child becomes more confident, try adding new challenges.
Match Uppercase to Lowercase
Hide uppercase letters in the sensory bin while matching them to lowercase letter cards.
Practice Letter Sounds
After finding each letter, ask:
“What sound does this letter make?”
Spell Names
Hide the letters needed to spell your child’s name.
Build Simple Words
Older preschoolers can search for letters to spell short words like:
- cat
- dog
- map
- sun
Alphabet Order
Challenge children to place each letter in alphabetical order after they find it.
Bonus: Turn It Into a Glow-in-the-Dark Letter Hunt
Want to make this activity even more exciting?
Because the letters are made from neon hot glue sticks, they glow beautifully under a blacklight.
Simply dim the lights, switch on a UV flashlight or blacklight, and let children search for glowing letters hidden in the sensory bin.
The learning stays exactly the same, but the glowing letters create an exciting new experience that encourages children to keep practicing.

More Ways to Use the Glow Letters
Once you’ve made the letters, you can use them for lots of literacy activities.
Try:
- Light table alphabet games
- Name building
- Sight word practice
- Letter sorting
- Alphabet scavenger hunts
- Sensory writing trays
Frequently Asked Questions
Do I need a blacklight?
No! The sensory bin works perfectly without one. The blacklight simply adds an extra element of fun.
Can I use magnetic or foam letters?
Absolutely. Any alphabet manipulatives will work if you don’t want to make your own letters.
What age is this activity best for?
This activity is ideal for preschoolers ages 3–5, though younger toddlers can also enjoy searching and sorting the letters with close supervision.
Can I reuse the materials?
Yes! Store the poly pellets and letters in a sealed container so they’re ready to use again.
Final Thoughts
Hands-on activities give preschoolers countless opportunities to practice letter recognition in meaningful ways. This simple letter matching sensory bin encourages children to search, identify, and match letters while strengthening fine motor skills and building confidence with the alphabet.
When you’re ready to add a little extra excitement, simply turn on a blacklight and transform the same activity into a glow-in-the-dark letter hunt. It’s an easy way to refresh the activity and keep children engaged without changing the learning goal.
Whether you’re teaching at home, in a preschool classroom, or in a home daycare, this reusable sensory bin is a fun way to make letter recognition memorable through play.
More Letter Recognition & Glow-in-the-Dark Activities
If your preschooler enjoys this activity, be sure to check out:
- Letter Recognition with Rocks
- Letter Hunt Water Bead Bin
- Glow-in-the-Dark Letter Matching
- Glowing Uppercase/Lowercase Matching Cards



I’m in love with this!!!
WOW!! This is such great fun!!! Thanks for sharing at The Mommy Club Link Party!
I love the idea of making your own letters with hot glue but I was just wondering how durable they are? Thanks!
Hi Alison! The hot glue letters ended up pretty pliable so they can bend and twist. My 2 year olds have yet to break any of them and we’ve been using them in other activities for about 6 months now. Hope that help! Thanks for stopping by!