Primary Live Problems

Each time you visit the NRICH site there will be some activities which are 'live'. That means we are inviting you and your students to send us solutions and we will publish a selection of them, along with your students' names and school, in a few weeks' time. If you'd like to know more about what we're looking for, read this short article.

When sending in solutions for these tasks, please bear in mind that we are particularly interested in examples that you believe demonstrate a progression from novice reasoning to expert reasoning (see our Reasoning Feature and, in particular, this article).  It might be that one child's reasoning has improved, or it could be that you send in solutions from different children which you feel exempflify different stages of reasoning.

Largest Evenlive

Stage: 1 Challenge Level: Challenge Level:1

How would you create the largest possible two-digit even number from the digit I've given you and one of your choice?

Poly Plug Rectangleslive

Stage: 1 Challenge Level: Challenge Level:1

The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?

Two Numbers Under the Microscopelive

Stage: 1 Challenge Level: Challenge Level:2 Challenge Level:2

This investigates one particular property of number by looking closely at an example of adding two odd numbers together.

Which Scripts?live

Stage: 2 Challenge Level: Challenge Level:1

There are six numbers written in five different scripts. Can you sort out which is which?

Rectangle Tanglelive

Stage: 2 Challenge Level: Challenge Level:1

The large rectangle is divided into a series of smaller quadrilaterals and triangles. Can you untangle what fractional part is represented by each of the ten numbered shapes?

Fraction Fascinationlive

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

This problem challenges you to work out what fraction of the whole area of these pictures is taken up by various shapes.

Stage 1 and 2 Toughnuts

Stage: 1 and 2

These Stage 1 and 2 problems haven't been solved yet. Why not take a look?