DUALOH! Brain Trainer
Improve your mental thinking

The value of children playing cards is not mere entertainment. Card games hold a number of vital sociological as well as developmental benefits, particularly when students or an adult play games together.

Dualoh cards

DUALOH! Brain Trainer

Dual-OH! is an infectious mathematical card game that improve mental thinking and make the brain think.
If you’re interested in helping your child become excited about maths, increase their flexibility in problem solving and improve their reaction time, then DUALOH! Mathematical Cards are an enjoyable, fun way for you and your child to practice basic facts, focus on maths language and develop flexible thinking.

You’ll be able to play along with your child in a mathematical environment which is stress free, fun and challenging, whilst developing essential abilities in ordering of numbers, addition, subtraction and multiplication. The cards have been developed by a specialist and are linked to the Australian Curriculum.

DUALOH! Card Game

Card games embrace complex strategies and increasing levels of difficulty. The key is to KEEP IT FUN!


It was interesting to observe them, they were helping each other out, playing with three people, teaching each other! Very different dynamics in the room as a result of the card activity

Benefits for Students

Using card games to practice the mathematics that students have learned is a good strategy to use in the mathematics classroom. The ‘Dual oh’ card games give students the opportunity to see the same concept of mathematics in a variety of ways and gives the students the opportunity to practice their basic facts and mathematical content. The card games also focus on order, addition, subtraction and multiplication. ‘Dual oh’ card games also focus on essential number mathematics ideas, language of maths, ideas associated with partitioning, flexible thinking and enjoyment of mental mathematics. As students play the games they have to think mathematically, they have to justify why they should pick up the cards and communicate this knowledge to the other person they are playing with.

Benefits for Teachers and Parents

The ‘Dual oh’ card games gives teachers the opportunity to observe the students as they play the games and to ask students to prove the mathematics behind their thinking and to justify as to why they have made their decisions to pick a particular card. By observing the students the teacher can listen to different strategies used by students, observe misconceptions displayed by students and develop further explicit teaching mathematics lessons to improve the students understanding of mathematics. Teacher feedback on September 8 ,2014 “It was interesting to observe them, they were helping each other out, playing with three people, teaching each other! Very different dynamics in the room as a result of the card activity

  • Product Information
    Subitise small collections of objects compare order and make correspondences between collections up to 12 and explain reasoning. Modelling numbers with a range images and understanding partitioning of numbers and the importance of grouping them.  Suitable for. F-2 +classrooms

    Buy Subitising

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    Recognise, model numbers with a range images read and order numbers to at least 110. Understand partitioning of numbers and the importance of grouping in tens. Suitable for Year 2-4+ classrooms

    Buy Whole Numbers



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    Focus: two decimal places and equivalence fractional knowledge. Mathematics ideas include addition of decimals (two decimal places), number line, and addition of like and unlike denominators, improper fractions, fractional partitioning and place value to two decimal places. Suitable for Years 4-6+

    Buy Hundredth Game

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    Focus: Numbers 1-12 in a variety of representations. This game includes pictures, language, symbols and 2D shapes. Suitable for F-2+ classrooms

    Buy Count-Oh!


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    Recall multiplication facts of two, three, five and ten. Uses known facts and strategies, such as commutativity. Understands that product means multiplication. Suitable for Year 3-5+ classrooms

    Buy Times 2,3,4,5


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    Focus on one decimal place such as 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, and 2.5. Fractions are represented in grids, circles, number lines, addition of like and unlike denominators, equivalence, and the relationship between fractions and decimals. Suitable for Year 4s + and any student who needs to think and practice ideas associated with one decimal place.

    Buy Tenth Game


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    Model and represent unit fractions including 1/2, 1/4, 1/3, 1/5 and their multiples to a complete whole and exploring the relationship between families of fractions (halves, quarters and eighths or thirds and sixths). Compare and order common unit fractions. Demonstrating equivalence between fractions using drawings and models. Yrs 5-8+

    Buy Fractions (Later)

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    Focus: Numbers from 4-20, word problems, number sentences with missing elements and the language of mathematics. Mathematical ideas include multiplication language such as sets of, lots of, arrays, less than, in between, sequence, skip counting. Suitable for Year 2-3+ classrooms

    Buy Problemo


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    Focus: Unit fractions of ½, 1/3, ¼, 1/5, 1/6, 1/8, 1/10, 1/12 and their multiples. Fractions are represented as equivalence, symbols, language, area model of circles and grids and collections. Suitable for yr. 3+-6 classroom and any student who is having trouble with early fraction knowledge

    Fractions (Early)


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    Focus on the 4 times tables to 10 times tables and includes products and the commutative property. This game is suitable for Years 4+ and any students who need practice with their tables.

    Buy Times 4,5,6,7,8,9


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    Focus: fraction, decimal and percentages. Mathematics representation includes grids, number lines and symbols. Suitable for Year 5- 6 +

    Buy Relato

Improve your mental thinking