Grades K–2 · Healthy eating
Snack Smart
Sort snacks into tooth-friendly and sometimes-treats, make water the everyday drink, and keep sweets with meals instead of all day long.
What you'll learn
- Students will sort snacks into tooth-friendly foods and sometimes-treats.
- Students will choose water as the everyday drink for healthy teeth.
- Students will state that sweets belong with meals, not spread across the whole day.
- Students will name two tooth-friendly snacks they like.
Your teeth have favorite foods — and so do sugar bugs (the sticky film grown-ups call plaque). Snacking smart means feeding your teeth, not the bugs!
Every-day foods and sometimes-treats
Teeth love: crunchy fruits and veggies like apples and carrots, cheese, yogurt without extra sugar, nuts, and eggs. And the best drink of all? Water! It rinses food away and never feeds a sugar bug.
Sugar bugs love: sticky candy, cookies, and sweet drinks. Here’s the surprise — juice has lots of sugar too, even 100% juice. Sweet things aren’t bad-guy foods, but they’re sometimes-treats, not every-day foods.
When you eat matters too
Here’s a snack-smart secret: when sugar bugs get sugar, they make acid that bothers tooth armor. If you sip juice or nibble candy all day long, the bugs get to snack all day long too. Keeping treats with meals gives your mouth lots of quiet time to clean itself up — your spit is actually a tooth-helper that works best during meals!
So: water in the water bottle, crunchy snacks between meals, and treats with dinner. Your teeth will thank you with a strong, shiny smile.
Ready to be a snack sorter? Show what you know below!
Print & go
Printables for this lesson
The educator plan includes objectives, standards, the step-by-step lesson, and a paper pre/post knowledge check with answer key. The family sheet is bilingual — English and Español on one page.
Standards alignment
Sources
Every health claim in this lesson comes from a primary source and is clinically reviewed before publication.
- Source: ADA MouthHealthy — Diet and Dental Healthaccessed 2026-07-28
- Source: ADA MouthHealthy — Nutrition for Babies and Kidsaccessed 2026-07-28
Licensed CC BY-NC-SA 4.0 — free for schools and families to use, share, and adapt with credit (non-commercial, share-alike).
Healthy Smiles. Brighter Futures. · atomicsmile.org/learn
Snack Smart — Educator Lesson Plan
Learning objectives
- Students will sort snacks into tooth-friendly foods and sometimes-treats.
- Students will choose water as the everyday drink for healthy teeth.
- Students will state that sweets belong with meals, not spread across the whole day.
- Students will name two tooth-friendly snacks they like.
Standards alignment (NHES)
- NHES 1.2.1 — Identify that healthy behaviors impact personal health. (Standard 1, Pre-K–Grade 2, NHES 2nd ed., 2007)
- NHES 7.2.1 — Demonstrate healthy practices and behaviors to maintain or improve personal health. (Standard 7, Pre-K–Grade 2, NHES 2nd ed., 2007)
Materials
- Snack picture cards (or real examples) — carrots, apple slices, cheese, yogurt, water, gummy candy, cookies, juice box, soda
- Two sorting baskets or two circles drawn on the board, labeled "every day" and "sometimes"
- Printed pre/post knowledge checks from this packet (one per student, used twice)
Procedure
- Pre-check (5 min): hand out the paper knowledge check, read each question aloud, and collect it. Keep the stack — you will compare it with the post-check.
- Warm-up (3 min): ask what everyone snacked on yesterday. No wrong answers — we are about to become snack sorters!
- Sort (5 min): hold up each snack card. Class votes: every-day food or sometimes-treat? Sort them into the two baskets and talk about the tricky ones (juice surprises people — it has lots of sugar).
- Drink talk (3 min): which drink can teeth sip happily all day? Water! It rinses food away and does not feed sugar bugs.
- Name your two (2 min): every student names two tooth-friendly snacks they actually like, and the class tallies the favorites.
- Wrap-up (2 min): when is treat time? With a meal — not little sips and bites all day, which lets sugar bugs snack all day too.
- Post-check (5 min): hand out the same knowledge check again. Compare class totals with the pre-check to see the learning — and celebrate it.
Knowledge check — photocopy this page
Give the same check before and after the lesson; class totals before vs. after give you a measurable outcome for reports and grants.
Name: ____________________________ Date: ______________ ☐ Before the lesson ☐ After the lesson
- Which drink is best for your teeth every day?
- Soda
- Juice
- Water
- Which snack do your teeth love?
- Crunchy carrots or cheese
- Sticky gummy candy
- A lollipop that lasts all day
- When is the smartest time for a sweet treat?
- All day long, little by little
- With a meal
- Right after brushing at bedtime
- What surprise drink has lots of sugar in it?
- Juice — even 100% juice
- Plain water
- Plain milk
- What happens if you sip sweet drinks all day?
- Your teeth get stronger
- Nothing at all
- Sugar bugs get to snack all day too
Answer key — teacher page
1. c · 2. a · 3. b · 4. a · 5. c
Sources
- ADA MouthHealthy — Diet and Dental Health — https://www.mouthhealthy.org/nutrition/food-tips (accessed 2026-07-28)
- ADA MouthHealthy — Nutrition for Babies and Kids — https://www.mouthhealthy.org/life-stages/babies-and-kids/nutrition-for-babies-and-kids (accessed 2026-07-28)
Healthy Smiles. Brighter Futures. · atomicsmile.org/learn
Snack Smart
Tonight's healthy habit
Water is the best everyday drink for teeth — juice and soda have lots of sugar, even 100% juice. Keep sweets and sugary drinks with meals instead of sipping and snacking all day, and offer crunchy fruits, veggies, and cheese between meals.
Try it tonight
Make a family snack menu tonight: draw two columns, "every day" and "sometimes," and let your child sort five favorite snacks into them. Hang it on the fridge and let them check the menu at snack time.
El hábito saludable de hoy
El agua es la mejor bebida de todos los días para los dientes — el jugo y el refresco tienen mucha azúcar, incluso el jugo 100% natural. Deje los dulces y las bebidas azucaradas para la hora de la comida en lugar de todo el día, y ofrezca frutas crujientes, verduras y queso entre comidas.
Pruébalo esta noche
Hagan hoy un menú familiar de botanas: dibujen dos columnas, "todos los días" y "a veces," y deje que su hijo o hija acomode cinco botanas favoritas. Péguenlo en el refrigerador y que lo consulte a la hora de la botana.
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