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Operations with natural numbers - I

tipo de documento Mathematics - Teaching sequence

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Operations with natural numbers - I

Worksheet overview

Description:

In this unit, basic concepts of natural numbers are revised and the operations of addition and subtraction are practised. Numbers that appear in each window are generated at random. This allows you to use the window indefinitely and practise a lot of different exercises. Numbers consist of only one or two figures so the calculations can easily be done mentally. Magic squares are used in the exercises, however the main objective of this unit is to learn things about natural numbers.

Teaching orientation:

PRIOR KNOWLEDGEThe contents of this course is taught in two courses previous and in two courses next.

KNOWLEDGE TYPE: conditional

LEARNING OBJECTIVESTo identify values which are natural numbers To be able to produce a graphical representation of several natural numbers on a line. To put in order the values of several natural numbers To add up natural numbers To make proper use of the addition properties. To subtract natural numbers To understand how subtraction is different from addition. The position of the numbers has to be preserved and the larger one has to be put first. To train in mental calculation of addition and subtraction

License:

creative commons: attribution - non commercial - share alike

License description:

The use of the following contents is universal, free of charge and open, provided that it is for non-commercial educative use. The actions, products and utilities derived from its use may therefore not generate any profit. Moreover, a reference to the source is required.

End user:

Context:

schoolmate

General

Language:

english

KeyWords: addition subtraction natural numbers magic square magic star

Scope: universal

Structure:

linear

Agregation level:

Teaching Sequence

Collection: Descartes

Node:

INTEF

agrega.educacion.es

Repository URL: /repositorio/23072010/c4/es_2010072363_9120448

IMS Manifest Download file

Technique

Format:

image/gif

text/html

Requirement type:

operating system

Requirement name:

multi-os

Requirement type:

browser

Requirement name:

any

Installation considerations:

Installation is not required

Other platform requirements:

Install and enable the Java interpreter and Plug-in of the Applet Descartes on local

Educational use

Educational learning resource type:

real or virtual learning environment

Interaction type:

active

Interaction level:

high

Semantic density:

low

Age: 12 years

Difficulty:

easy

Learning time: 4 teaching units

Educational language:

english

Cognitive process:

analyse

solve

prove

Rights

License cost:

Access type:

universal

Access description:

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