Letter of the Week: Preschool Letter O Activities & Ideas

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It’s time for another exciting stop in our Letter of the Week series—this week we’re exploring the Preschool Letter O! Whether you’re teaching in a classroom or homeschooling your little ones, this post is packed with hands-on ideas to help you bring the letter O to life through crafts, themed snacks, books, and printables.

Find the whole letter of the week series HERE.

Letter O Theme Ideas

Here are some fun and creative themes you can use to plan your preschool Letter O week:

Octopus, Owl, Ocean, Olives, Orange, Opposites, Orangutan, Oats, Ostrich, Oak, Onion, Oil, Oar, Otter, Ox, Oven, Orchid

What other O words can your preschoolers brainstorm? Try focusing on one theme each day or create a mini unit around oceans or animals that start with O!

Teaching the Letter O: Sounds and Recognition Tips

The letter O is an important vowel in the English alphabet and has two common sounds that preschoolers can begin to recognize:

• Short O sound like in octopus, olive, and ostrich

• Long O sound like in ocean, open, and oval

You can help reinforce these sounds through songs, phonics games, and object hunts. One fun activity is to create an O sound jar filled with miniature items or pictures of things that begin with O—then let your child pull them out and say the word aloud.

As children practice writing the letter O, remind them it’s a “magic circle” that starts and ends in the same place. Tracing, air-writing, or using fingers in salt trays are great multisensory ways to support learning.

Printable Preschool Letter O Activity Pack

Looking for low-prep, ready-to-use learning pages? My Preschool Letter O Printable Pack includes 20 pages of fun and educational activities to help reinforce the letter O.

Inside the pack:

• Uppercase and lowercase tracing

• Letter recognition games

• Do-a-dot marker activities

• Scissor skill practice

• Coloring and puzzle pages

• Letter O mazes

• Letter O craft template (“O is for Orange”)

Perfect for homeschool, morning work, literacy centers, or quiet time activities.

Hands-On Letter O Activity Ideas

Sometimes the simplest activities are the most effective! Here are a few easy, no-prep ways to practice the letter O throughout your week:

• Salt or Sand Trays: Practice writing the letter O with fingers, paintbrushes, or sticks.

• Playdough Letters: Roll playdough into snakes and shape the letter O.

• “O” Hole Punch Craft: Use a hole punch to punch O’s into paper—perfect for building hand strength!

• O-Object Hunt: Send your child around the house to find things that start with O.

• Chalk It Out: Write big letter O’s outside with sidewalk chalk and let your child trace or jump on them.

• Make an O Collage: Cut out magazine pictures of items that start with O and glue them onto a giant letter O outline.

These activities work beautifully alongside your printables and help keep learning fun, varied, and hands-on.

Bonus Teaching Tip

If you’re introducing the Letter O alongside a theme—like Ocean Week, Owl Study, or Opposites—it helps preschoolers make meaningful connections between sounds, stories, and experiences. Try pairing a craft with a related book (like Over in the Ocean) or snack (like O-shaped cereal bars) for an immersive experience.

Preschool Letter O Book List

Reading is the best way to build language skills and connect with kids. Check out these fun and meaningful Letter O books that fit a variety of themes—from animals and nature to opposites and emotions:

Ox-Cart Man by Donald Hall
How to Hide an Octopus by Ruth Heller
An Octopus is Amazing by Patricia Lauber
Even an Octopus Needs a Home by Irene Kelly
Opposites by Sandra Boynton
Owen by Kevin Henkes
Commotion in the Ocean by Giles Andreae
Over in the Ocean by Marianne Berkes
Each Orange Had 8 Slices by Jr. Gigantic Paul
Olivia’s Opposites by Ian Falconer
I Am Otter by Sam Garton
Do Unto Otters: A Book About Manners by Laurie Keller
Even an Ostrich Needs a Nest by Irene Kelly
As an Oak Tree Grows by G. Brian Karas
Owl Babies by Martin Waddell
Beautiful Oops! by Barney Saltzburg

Letter O Fine Motor Activities

Fine motor skills are a foundational part of early writing success. Incorporating these into your letter learning gives kids confidence and coordination while reinforcing the shape of the letter O.

Here are a few ideas:

• Trace the letter O with buttons, pom-poms, or stickers

• Use O-shaped cereal (like Cheerios) to form the letter

• Let kids lace O’s onto yarn or pipe cleaners

• Practice snipping strips of paper and gluing them into a round O shape

• Draw large O’s and have your child trace them with highlighters or dot markers

These quick add-ins make your letter-of-the-week activities even more skill-rich.

Letter O Craft: O is for Orange

This simple and sweet letter O craft is perfect for preschoolers to complete on their own!

How to make it:

1. Print the Letter O and Orange templates (included in the printable pack)

2. Color the shapes with crayons or markers

3. Cut and glue the pieces together to turn the letter O into an orange!

This craft reinforces both letter recognition and fine motor skills in a no-stress way.

Letter O Snack: Cereal O’s Snack Bars

Here’s a no-bake snack idea that doubles as a letter O activity—and it’s easy enough for kids to help make!

Cereal O Snack Bars

Ingredients:

• ½ cup peanut butter (or nut-free alternative)

• ½ cup honey or maple syrup

• 3½ cups O-shaped cereal (like Cheerios)

• 2–3 Tbsp chocolate chips (optional- could also add dried fruit)

Instructions:

1. In a pot or microwave-safe bowl, heat peanut butter and honey until smooth.

2. Mix with cereal in a large bowl.

3. Press into a square pan lined with wax paper.

4. Sprinkle with chocolate chips if desired.

5. Chill, cut, and enjoy!

Great for snack time, co-op meetups, or a special treat during Letter O week.

A Peek Into Our Letter O Week

One of my favorite parts of teaching letter-of-the-week is how kids light up when the learning feels personal and joyful. During our Letter O week, my kids loved:

• Making an “O is for Orange” craft

• Going on an O scavenger hunt

• Learning about ocean animals

• Reading silly books about opposites

It’s not about checking boxes—it’s about sparking curiosity, connection, and confidence as they build letter knowledge week by week.

Want to Download the Activity Pack?

This is available in my shop individually or as part of my letter of the week curriculum bundles.

Find ALL of the Letter of the Week activities HERE.

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