knex challenge

What is a K'nex Challenge?

Our popular annual Go Construct K’nex Challenge provides primary school children with an introduction to the exciting world of engineering and technology. The challenge is suitable for children of all abilities and is run by STEM Ambassadors who are trained to deliver the sessions in school.

The challenge requires the pupils to design and build a solution to a problem that is given to the children on the day, developing their problem-solving skills, using creativity as well as early project management skills.

Annually, more than 150 schools take part in this low-cost and exciting activity, valued by both teachers and pupils.

"Inspiring young people through hands on activities"

Information for Teachers

The Go Construct K’NEX Challenge is a hands-on engineering activity designed for primary schools.

Key information

* Low cost: £65 for one session or £80 for two sessions

* Delivered in the second half of the academic year

* Led by Go Construct Ambassadors and STEM Ambassadors

* Suitable for Year 5 and Year 6 (smaller schools may include their Year 4’s)

* Maximum 36 pupils per session (AM and PM available)

* Pupils work in pairs to complete the challenge.

The winning pair from each class receives medals and is nominated to represent their school at the regional final, where they compete for a trophy and K’NEX kits to take home.

2025 Winners

A heartfelt appreciation goes out to all the STEM Ambassadors who generously contributed their time and expertise, significantly enhancing the success of this year's challenge. For the 24th consecutive year, STEMPOINT successfully delivered the Go Construct Knex Challenge in primary schools across Hertfordshire, Luton, Suffolk, Peterborough, and Essex.

This year, 8,769 students from 169 different schools benefitted from this experience thanks to 60 volunteer STEM Ambassadors delivering over 315 challenges.

Knex winners 2025 flyer