Rub-a-dub sub
by Linda Ashman
Harcourt 2003
Great fit for 2nd grade
Reading level and content both target K–3rd grade · ages 5–9
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Genre
Themes
- imagination
- adventure
- ocean and sea creatures
- playfulness
- bravery
- family time
- rhyme and wordplay
About this book
A lively, rhyming read-aloud, Rub-a-dub Sub follows a child whose ordinary bath time turns into an underwater adventure in a make-believe submarine. With bouncy verse and playful sound words, the journey splashes past sea creatures and ocean wonders before circling safely home. Perfect for preschoolers and early readers, it’s short, funny, and full of movement. Kids love the rhythm and imagination, and grown-ups will enjoy sharing the upbeat, bath-time fun.
Setting: a child’s bathtub and an imagined undersea world
Frequently Asked Questions
Is Rub-a-dub sub right for my child?
Yes — Rub-a-dub sub is a great fit for 2nd grade. The reading level is AR 2, which is typical for 2nd grade. The interest level is rated Lower Grades (K–3), meaning the themes and content are designed for ages 5–9 (K–3rd grade). Themes include imagination, adventure, ocean and sea creatures.
How long does it take to read Rub-a-dub sub?
At a typical 2nd grade reading pace, Rub-a-dub sub takes around 3m to finish. The book has 300 words. Slower or faster readers may vary significantly.
Does Rub-a-dub sub have an AR quiz?
Yes — Rub-a-dub sub has an AR quiz available, worth 0.5 points. Your child will need to take and pass the quiz through their school's Accelerated Reader program to earn credit. The quiz is typically 5–20 multiple choice questions about plot, characters, and setting.
What grade level is Rub-a-dub sub?
Rub-a-dub sub has an AR reading level of 2, which places it at a 2nd grade reading difficulty. The interest level is rated Lower Grades (K–3) — this reflects the age-appropriateness of the content and themes, not just the reading difficulty. A strong younger reader may handle the words fine while the themes are aimed at an older audience, or vice versa.