Master your Maths with Numberwise!

NUMBERWISE: Free online tool set to transform maths in SA

MATHEMATICS has advanced some wonderful things in this world. Grand architecture, engineering, modern medicine and astronomy would not be the same today without maths. Unfortunately this isn’t something that is generally taught at a school level; and at a university level, lecturers have the habit of telling students to forget everything they learnt at school.

Maths is not everyone’s forte and many South Africans have children who are battling with the subject at school. With trials looming, it may be wise for educators and learners alike to look to the wonderful web for some help with their maths homework.

mathsNumberwise is one such service that has proved to be a very successful tool in teaching learners to master maths basics and improve their mathematical abilities. The Numberwise program was originally written by Durbanite Trevor Lagerwall for his youngest son, Ross, who was struggling with maths at school. After completing the Numberwise course, said son achieved 100% for First Year Maths at UKZN, has re-written the Numberwise program, and is currently studying Computer Science. Trevor’s eldest son, Brett, achieved 100% for second year maths with the help of Numberwise.

For the past five years, Numberwise has been used in the Department of Civil Engineering at the Durban University of Technology (DUT). The results have been so positive that the Numberwise course now forms a module of the Civil Engineering Program at DUT.

Trevor Lagerwall illustrates the recent success of Numberwise at DUT: “Despite having just passed matric maths and been accepted into civil engineering, the average mark of students coming into DUT is 30%. Yet all those who complete the Numberwise course pass with 90% or more. Even more encouraging is that there has been a 25% improvement in maths marks at first year level”, says Lagerwall.

The Numberwise website describes how maths is layered and requires mastering the basics before being able to advance in the subject. In the five weeks that Numberwise has been available online, it has registered over 1 000 students from schools in Pietermaritzburg, Pretoria, East London and Namibia, and has even reached as far as Bolivia and Australia.

Numberwise is freely available for anyone to use and encourages educators to enlist their learners and monitor their progress. Learners are then encouraged to do a maths Assessment Test, and all completed work is recorded on the Numberwise server. This allows learners to compare their maths results and times with classmates or anyone else making use of the program. Peer competition not only encourages learners to perform better but soon there will be a chance to win prizes too.

“We have used these last five years to polish Numberwise into the interactive web-based program that it is today, says Lagerwall. Knowing that Numberwise works, it’s a no-brainer that all learners at school ought to do the Numberwise course. We believe that it will make a huge difference in maths in South Africa. Plus it is a fun way to learn one’s tables & bonds (addition & subtraction).”

To use Numberwise requires registering for free as an administrator and downloading the Numberwise program, which is less than two megabytes. Teachers or parents are then encouraged to register and enlist their students or children. Once the software is installed, users are ready to start their Numberwise journey. The maths website offers user-friendly, step-by-step support on how to get Numberwise up and running on your home or work PC. Learners can also use Numberwise at home and teachers can monitor their progress remotely.

Lagerwall explains: “Even though they will be registered at school, learners can do the course either at school or at home. However, the teacher (as the administrator) can still monitor their progress, print reports and certificates and so on, all via the website.”

Numberwise is entirely free for all to use but is currently looking for sponsorship. “Once we have sufficient numbers we are hoping to attract a sponsor, in part to monetise the project but also to sponsor stunning prizes that will drive the use of Numberwise”, says Lagerwall. can handle multiple sponsors at a school, provincial, national or global level.

To see Numberwise in action, maths courses are held every Friday between 10am and 4pm at the Indumiso campus of DUT in Pietermaritzburg, where students do around 200 000 calculations. The goal is not only to prove that Numberwise really works, but to spread awareness of its free availability to all schools and educators country-wide.

“My hope is that all schools register all their learners and incorporate the Numberwise Course as part of their curriculum, says Lagerwall. Since every child in the world needs to learn their tables and bonds, our vision is that they do this using Numberwise, which we hope to grow first here in South Africa.”

For any questions regarding Numberwise, or if you are interested in becoming a sponsor of this project, you can contact Trevor Lagerwall on 084 568 2461 or 031 767 3247; or email him at

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