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Resources tagged with Positive-negative numbers similar to Ishango Bone:

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Codes and cryptography. Famous mathematicians. Mixed trig ratios. History of mathematics. Mathematical reasoning & proof. History of number systems. Positive-negative numbers. Generalising. Making and testing hypotheses. History of measurement.

There are 20 results

Broad Topics > Numbers and the Number System > Positive-negative numbers

The History of Negative Numbers

Stage: 3, 4 and 5

This article -useful for teachers and learners - gives a short account of the history of negative numbers.

Negative Numbers

Stage: 3

A brief history of negative numbers throughout the ages

Adding and Subtracting Positive and Negative Numbers

Stage: 2, 3 and 4

How can we help students make sense of addition and subtraction of negative numbers?

Strange Bank Account (part 2)

Stage: 3 Challenge Level:

Investigate different ways of making £5 at Charlie's bank.

Consecutive Negative Numbers

Stage: 3 Challenge Level:

Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?

Making Sense of Positives and Negatives

Stage: 3

This article suggests some ways of making sense of calculations involving positive and negative numbers.

Strange Bank Account

Stage: 3 Challenge Level:

Imagine a very strange bank account where you are only allowed to do two things...

Up, Down, Flying Around

Stage: 3 Challenge Level:

Play this game to learn about adding and subtracting positive and negative numbers

Playing Connect Three

Stage: 3 Challenge Level:

In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?

Missing Multipliers

Stage: 3 Challenge Level:

What is the smallest number of answers you need to reveal in order to work out the missing headers?

Vector Racer

Stage: 2, 3 and 4 Challenge Level:

The classic vector racing game brought to a screen near you.

Weights

Stage: 3 Challenge Level:

Different combinations of the weights available allow you to make different totals. Which totals can you make?

Sea Level

Stage: 2 Challenge Level:

The picture shows a lighthouse and many underwater creatures. If you know the markings on the lighthouse are 1m apart, can you work out the distances between some of the different creatures?

First Connect Three

Stage: 2 and 3 Challenge Level:

The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?

Connect Three

Stage: 3 and 4 Challenge Level:

Can you be the first to complete a row of three?

Swimming Pool

Stage: 1 and 2 Challenge Level:

In this problem, we're investigating the number of steps we would climb up or down to get out of or into the swimming pool. How could you number the steps below the water?

Consecutive Numbers

Stage: 2 Challenge Level:

An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.

Positive about Negative Numbers

Stage: 1 and 2

In this article for teachers, Liz Woodham describes resources on NRICH that can help primary-aged children get to grips with negative numbers.

Tug Harder!

Stage: 2 Challenge Level:

In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?

Pair Sums

Stage: 3 Challenge Level:

Five numbers added together in pairs produce: 0, 2, 4, 4, 6, 8, 9, 11, 13, 15 What are the five numbers?