Libro Open Math

Independently published

First Grade Math Workbook , Open-Ended Math Activities: Pre-school Workbook for Kids Age 3-5, Kindergarten Addition and Subtraction

Matharoo

Maths Open-Ended Word Problems Upper-Primary Level: Volume 1

Matharoo

Maths Open-Ended Word Problems Middle-Primary Level: Volume 1

Routledge

Open Middle Math: Problems That Unlock Student Thinking, 6-12 (English Edition)

50 Open-Ended Maths Challenges (English Edition)

The 1st Global Math Challenge Official Workbook, Open (English Edition)

The 2nd Global Math Challenge Official Workbook, Open (English Edition)

Crown Books for Young Readers

Do Not Open This Math Book: Addition + Subtraction (McKellar Math) (English Edition)

OXFORD UNIVERSITY PRESS

Open-Ended Maths Activities                      

Open University Worldwide

Maths for Science