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 low cost at just £65 for 1 session or £80 for 2
takes place during the second half of the academic year
is led by Go Construct Ambassadors and STEM Ambassadors.
suitable for Year 5 & 6 pupils
maximum of 36 pupils per session (am & pm)

The winning pair of pupils from each class is awarded a medal and nominated to represent their school in the regional final for the chance to win a trophy and K'nex kits to take home.

Some schools have an engineer who can be recruited through governors, teachers or parents, or STEMPOINT can help find and allocate an engineer from the STEM Ambassador scheme.

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