When you finish solving a problem, do you stop to think about your solution before moving on to something else? Do you talk to someone else to see if they solved it the same way? These are good habits to help you become a more resilient problem solver, and we hope the problems in this feature will give you lots of opportunities to explore your own and other people's solutions!

### The Knapsack Problem

### Fruity Totals

In this interactivity each fruit has a hidden value. Can you deduce what each one is worth?

### Diamond Collector

Collect as many diamonds as you can by drawing three straight lines.

### What's it worth?

There are lots of different methods to find out what the shapes are worth - how many can you find?

### Peaches today, Peaches tomorrow...

### Cuboid Challenge

What's the largest volume of box you can make from a square of paper?

### Vector Gem Collector

Use vectors to collect as many gems as you can and bring them safely home!