- K is for Koala
- Kaliaki Goes Fishing
- Kamu
- Kate and Tom Learn About Fossil Fuels
- Katie and the Dinosaurs
- Kattas ungar
- Katte, Grøn Fagklub
- Kaukaʻi ka Pulelehua Kamehameha i ka Māmaki (Hawaiian)
- Kaukaʻi ka Puʻu Koa i ke Kumu Koa (Hawaiian)
- Kay's Anatomy
- Kay's Marvellous Medicine
- Keeping Cool in Summer
- Keeping Safe (Readaloud)
- Keiki Are Like Their Mākua
- Kelly Stays Home: The Science of Coronavirus
- Kennst Du?! ...die Abenteuer der Piraten
- Kennst Du?! – die Welt der Tiere
- KENT TEST: Maths
- Kevin Magnussen, Blå Fagklub
- Kids Fight Plastic
- Kids First Book - Plants & Fungi to Know
- Kids InfoBits Presents: Astronomy
- Kids InfoBits Presents: Geography
- Kids InfoBits Presents: Habitats
- Kids InfoBits Presents: The Human Body
- Kids InfoBits Presents: Weather and Natural Disasters
- Kids Learn: Parts of a Plant
- Kids Reading: Tornadoes
- Killer Animals
- Kindergarten Math Skills
- King Cecil the Sea Horse (Dr. Seuss/Cat in the Hat)
- Kitchen Chemistry
- Kitticorn
- Klimaklog
- Knock Knock Alien
- Knowledge Encyclopedia Human Body!
- Knowledge Encyclopedia Ocean!
- Knowledge Encyclopedia Science!
- Kompasnålen der bevægede sig
- Kouzelný herbář skřítka Bolhoje
- Kristian på sporet af rummet
- KS3 Maths Homework Book 1
- KS3 Maths Homework Book 2
- KS3 Maths Homework Book 3
- KS3 Maths Pupil Book 1.1
- KS3 Maths Pupil Book 1.2
- KS3 Maths Pupil Book 1.3
- KS3 Maths Pupil Book 2.1
- KS3 Maths Pupil Book 2.2
- KS3 Maths Pupil Book 2.3
- KS3 Maths Pupil Book 3.1
- KS3 Maths Pupil Book 3.2
- KS3 Maths Pupil Book 3.3
- Kultasydän
- Kuʻu Wahi Iʻa Kāheka (Hawaiian)
- Kū ke Keiki i ka Makua (Hawaiian)
- Kūkaukaʻi ka ʻApapane a me ka ʻŌhiʻa (Hawaiian)