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Working with Directed Numbers

Working with Directed Numbers

This set of tasks is intended to provide an introduction to operations with positive and negative numbers. The article offers a variety of models that could be used with students to introduce them to the concepts of calculating with directed numbers, and the resources and games can be used in the classroom to develop students' understanding and fluency.


Adding and Subtracting Positive and Negative Numbers 
Age 11 to 14

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

Strange Bank Account 
Age 11 to 14
Challenge Level Yellow star

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

Up, Down, Flying Around 
Age 11 to 14
Challenge Level Yellow star

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

Connect Three 
Age 11 to 16
Challenge Level Yellow starYellow star

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

Weights 
Age 11 to 14
Challenge Level Yellow starYellow star

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

Related

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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