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There are **20** NRICH Mathematical resources connected to **Mass and weight**, you may find related items under Measuring and calculating with units.

Problem
Primary curriculum
Secondary curriculum
### Seesaw Shenanigans

A group of animals has made a seesaw in the woods. How can you make the seesaw balance?

Age 3 to 7

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Place Your Orders

Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?

Age 11 to 14

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Discuss and Choose

This activity challenges you to decide on the 'best' number to use in each statement. You may need to do some estimating, some calculating and some research.

Age 5 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Order, Order!

Can you place these quantities in order from smallest to largest?

Age 5 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### All in a Jumble

My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.

Age 11 to 14

Challenge Level

List
Primary curriculum
Secondary curriculum
### Being Resilient - Primary Measures

Measure problems at primary level that may require resilience.

Age 5 to 11

Challenge Level

List
Primary curriculum
Secondary curriculum
### Being Resourceful - Primary Measures

Measure problems at primary level that require careful consideration.

Age 5 to 11

Challenge Level

List
Primary curriculum
Secondary curriculum
### Being Collaborative - Primary Measures

Measure problems for primary learners to work on with others.

Age 5 to 11

Challenge Level

List
Primary curriculum
Secondary curriculum
### Being Curious - Primary Measures

Measure problems for inquiring primary learners.

Age 5 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Watermelons

These watermelons have been entered into a competition. Use the information to work out the number of points each one was awarded.

Age 7 to 11

Challenge Level

Article
Primary curriculum
Secondary curriculum
### 2010: A Year of Investigations

This article for teachers suggests ideas for activities built around 10 and 2010.

Age 5 to 14

Problem
Primary curriculum
Secondary curriculum
### Weighing Fruit

Can you use this information to estimate how much the different fruit selections weigh in kilos and pounds?

Age 7 to 11

Challenge Level

Article
Primary curriculum
Secondary curriculum
### Working with Dinosaurs

This article for teachers suggests ways in which dinosaurs can be a great context for discussing measurement.

Age 7 to 11

Article
Primary curriculum
Secondary curriculum
### Measure for Measure

This article, written for students, looks at how some measuring units and devices were developed.

Age 5 to 11

Article
Primary curriculum
Secondary curriculum
### Weigh to Go

This article for teachers recounts the history of measurement, encouraging it to be used as a spring board for cross-curricular activity.

Age 5 to 11

Problem
Primary curriculum
Secondary curriculum
### Money Measure

How can you use just one weighing to find out which box contains the lighter ten coins out of the ten boxes?

Age 7 to 11

Challenge Level

Game
Primary curriculum
Secondary curriculum
### Do You Measure Up?

A game for two or more players that uses a knowledge of measuring tools. Spin the spinner and identify which jobs can be done with the measuring tool shown.

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Oranges and Lemons

On the table there is a pile of oranges and lemons that weighs exactly one kilogram. Using the information, can you work out how many lemons there are?

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### Pies

Grandma found her pie balanced on the scale with two weights and a quarter of a pie. So how heavy was each pie?

Age 7 to 11

Challenge Level

Problem
Primary curriculum
Secondary curriculum
### What's My Weight?

There are four equal weights on one side of the scale and an apple on the other side. What can you say that is true about the apple and the weights from the picture?

Age 7 to 11

ShortChallenge Level