Ejercicios De Lógica

MEP: Demonstration Project

Y7A, Unit 1

UNIT 1 Logic

Activities

Activities
1.1 1.2 Two Way Tables Shapes in Two Way Tables a. b. c. 1.3 1.4 1.5 1.6 Shapes Numbers Letters

Venn Diagrams Numbers in Venn Diagrams a. Venn Diagrams Plane Passengers Representing Sets by Venn Diagrams

© The Gatsby Charitable Foundation

MEP: Demonstration Project

Y7A, Unit 1

ACTIVITY 1.1
This is a whole-class or group activity.

Two Way Tables

You are going to divide up into groups according to two criteria. You need to either use the four corners of your classroom, or make sufficient space in one area of the room. In each case, divide up into the appropriate corner or 'cell' according to the criteria given.

1.
Boys No sisters or brothers At least one sister or brother Girls

Add up the total number of pupils in each cell. What does this tell you?

2.

No sisters No brothers One or more brothers

One or more sisters

What must the total number of pupils in each cell add up to?

3.
No sisters No brothers One brother One sister

What does the total number of pupils in each cell now add up to? Describe the criteria for pupils who are not in any of the cells.

© The Gatsby Charitable Foundation

MEP: Demonstration Project

Y7A, Unit 1

ACTIVITY 1.2

Shapes in Two Way Tables

This activity requires the use of a set of shapes (given on A 1.2a). You will also need large (A3) 2 × 2 and 3 × 3 tables on which to place the shapes. In each case, put the complete set of shapes, 40 in total, into the appropriate cell, according to the criteria given. 1. (a)

No. of edges Not all All straight straight

(b)

No. of edges 2 or less 3 or more

Shaded Not shaded

Shaded Not shaded

2.

No. of edges 3 or less Shaded Not shaded 4 5 or more

3.
3 or less All round Type of edge Some round and some straight All straight

No. of edges 4 5 or more

4.

No. of edges 3 or less None or one No. of vertices Two or three Four or... [continua]

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