If I don't have the size of cake tin specified in my recipe, will the size I do have be OK?

Formulate and investigate a simple mathematical model for the design of a table mat.

Is it cheaper to cook a meal from scratch or to buy a ready meal? What difference does the number of people you're cooking for make?

Could nanotechnology be used to see if an artery is blocked? Or is this just science fiction?

Where should runners start the 200m race so that they have all run the same distance by the finish?

This is the technology section of stemNRICH - Core.

What shape would fit your pens and pencils best? How can you make it?

Build a scaffold out of drinking-straws to support a cup of water

Design and construct a prototype intercooler which will satisfy agreed quality control constraints.

Many natural systems appear to be in equilibrium until suddenly a critical point is reached, setting up a mudslide or an avalanche or an earthquake. In this project, students will use a simple. . . .

A simple robot to make, plus robots in everyday life to investigate.

What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?

A weekly challenge concerning drawing shapes algorithmically.

Create a symmetrical fabric design based on a flower motif - and realise it in Logo.

Moiré patterns are intriguing interference patterns. Create your own beautiful examples using LOGO!

Creating a schedule to cook a meal consisting of two different recipes, plus rice.

My recipe is for 12 cakes - how do I change it if I want to make a different number of cakes?

What shape and size of drinks mat is best for flipping and catching?

Design and test a paper helicopter. What is the best design?

Can you make a new type of fair die with 14 faces by shaving the corners off a cube?