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Ratio and proportional division

tipo de documento Mathematics - Teaching sequence

Equipo Didactalia

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Ratio and proportional division

Worksheet overview

Description:

This unit has been designed to introduce the concept of both direct and inverse proportional parts or quantities. We will approach the above-mentioned concepts through a series of problems and exercises and also focus on methods which will allow us to apply these concepts to similar situations.

Teaching orientation:

KNOWLEDGE TYPE: conditional

LEARNING OBJECTIVESTo introduce the concept of proportion and its properties. To introduce the concept of directly proportional quantities and find a method which can be used to solve problems involving these kinds of quantities. To introduce the concept of inversely proportional quantities and find a method which can be used to solve problems involving these kinds of quantities. To find similar relationships in different problems, and apply the methods explained earlier on in the unit to solve them.

PRIOR KNOWLEDGEThe contents are explained in previous and next courses

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:

learner

Context:

schoolmate

General

Language:

english

KeyWords: ratio direct proportion inverse proportion the rule of 3

Scope: universal

Structure:

linear

Agregation level:

Teaching Sequence

Collection: Descartes

Node:

INTEF

agrega.educacion.es

Repository URL: /repositorio/25072010/6c/es_2010072563_9130059

IMS Manifest Download file

Technique

Format:

image/gif

text/html

Requirement type:

browser

Requirement name:

any

Requirement type:

operating system

Requirement name:

multi-os

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:

mixed

Interaction level:

medium

Semantic density:

low

Age: 12 years

Difficulty:

easy

Learning time: 3 teaching units

Educational language:

english

Cognitive process:

contextualize

implement

motivate

practise

solve

Rights

License cost:

Access type:

universal

Access description:

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