Numeracy: la definizione del dominio come abilità.


Definition of the domain
PIAAC defines numeracy as the ability to access, use, interpret and communicate mathematical information and ideas, in order to engage in and manage the mathematical demands of a range of situations in adult life.
Numerate behaviour involves managing a situation or solving a problem in a real context, by responding to mathematical content/information/ideas represented in multiple ways.

Numeracy: il contesto reale e le risposte.

Numerate behaviour involves managing a situation or solving a problem…

1. In a real context:
• everyday life;
• work;
• society; and
• further learning.

 2. By responding:
• identify, locate or access;
• act upon, use: order, count, estimate, compute, measure, model;
• interpret;
• evaluate/analyse; and
• communicate.

Numeracy: informazioni, idee, rappresentazioni e comportamento.

3. To mathematical content/information/ideas:
• quantity and number;
• dimension and shape;
• pattern, relationships, change; and
• data and chance.

4. Represented in multiple ways:
• objects and pictures;
• numbers and mathematical symbols;
• formulae;
• diagrams and maps, graphs, tables;
• texts; and
• technology-based displays.

Le formule.

Use formulas to work out an unknown amount from known ones. Like a turkey cooking time from its weight.

Le formule si usano per calcolare un importo sconosciuto da altri noti. Come ad esempio il tempo di cottura di un pollo conoscendo il suo peso.

Le formule si applicano per:

Collegare i problemi enunciati a parole con i calcoli corrispondenti
Trovare i numeri mancanti in una operazione aritmetica
Riconoscere le formule
Risolvere semplici problemi numerici
Usare una formula per trovare una grandezza incognita
Valutare formule semplici
Trasformare problemi espressi a parole in simboli e numeri
Schemi e sequenze di successioni di numeri 
Riconoscere termini algebrici, formule, ed equazioni
Scrivere formule con parole

5. Numerate behaviour is founded on the activation of several enabling factors and processes:
• mathematical knowledge and conceptual understanding;
• adaptive reasoning and mathematical problem-solving skills;
• literacy skills;
• beliefs and attitudes;
• numeracy-related practices and experience; and
• context/world knowledge.