2ESO Unit 5: Proporcionality and percentages

Introduction P.88
1. Ratios and proportions
     Activities P.90: 1,2,3,4

2 Direct porportion

2.1 Solving problems: unitary method
     Activities P.91: 1,2,3
2.2 Tables of direct proportionality

2.3 Cross- multiplication (regla de tres)
2.4 The proportion rate
     Activities P.93: 4,5,6,7,8,9,10,11

3. Inverse proportion
     Activities P.95: 1,2,3,4,5,6,7.

4. Compound Proportionality
     Activities P.97: 1,2,3,4

5. Problems of proportional distribution: Direct and inverse

     Activities P.99: 1,2,3,4

6. Percentages
6.1 A percentage indicates a proportion
6.2 A percentage is a fraction
6.3 A percentage is associated with a decimal number
6.4 Quickly calculating some percentages
     Activities P.101: 1,2,3,4,5,6,7,8,9,10,11

7. Problems with percentages
7.1 Calculating the total from the percentage and the part
7.2 Calculating the percentage from the total and the share
7.3 Percentage increases
7.4 Percentage decreases
     Activities P.105: 1,2,3,4,5,6,7,8,9,10,11,12

8. Bank Interest
     Activities P.106: 1,2,3

To learn more
P.112 Piensa, experimenta, calcula
P.113 Entrénate resolviendo problemas


Algunos enlaces para repasar
En este video de Unicoos resuelven un ejercico de proporcionalidad compuesta
https://www.youtube.com/watch?v=_Fr7S3TDG4c

Y en estos de Matematicas profe Alex también
ejercicio 1
ejercicio 2
ejercicio 3

Esta es la lista de reproducción completa de Matematicas profe Alex, que tambien tiene reglas de tres simples y porcentajes
lista de reproduccion

Y aqui teneis unos ejercicios interactivos
https://www.vitutor.com/di/p/a_1e.html

1ESO: Integers

1 Positive and negative numbers
1.1 Use of positive and negative numbers
     Activities P. 65: 1,2,3,4,5,6,7,8

2 The set of integers
2.1 The set Activities
     P.67: 1
2.2 Order and comparison Activities
     P.67: 2,3,4
2.3 Absotute and Opposite values Activities
     P.67: 5,6,7,9

3 Adding and subtracting integers
3.1 Two integers
3.2 More than two integers
     Activities P.69: 1,3,4,5,6,8,9,10,11,13,14

4. Adding and subtracting with parentheses
    Activities P.70: 1,2
4.1 Adding and subtracting
     Activities P.71:3,4,5
     Activities P.72: 5,7,8,9,10,11,12,13,14,16

5. Multiplying and dividing integers
5.1 Multiplying
     Activities P.74: 1,2,5
5.2 Dividing
     Activities P.74: 3,4,6,8

6. Combined operations
     Activities P.75: 1,2,4,6

7. Powers and roots of integers
7.1 Powers of a positive number
7.2 Powers of a negative number (basis, not exponent)
7.3 Square root of an integer
      Activities P.77: 1,3,4,5,6,8,9,10,12,14,15,16.

Review activities:
If you need to review:
     P. 78: 1,4,9,16,17
     P. 81: 31,32,33

If you want to practise:
     P. 78:6,11
     P. 79: 13,15,16,17,20,21,23
     P. 80: 26,27,29
     P. 81: 34,35

If you want to learn more:
     P. 82 Express yourself

3ESO Unit 5: The language of algebra

1 Algebraic expressions
Activities P. 84: 1

2 Monomials
Activities P. 85: 1,2,3,4.

3. Polynomials
Adding, substracting, product monomial x polynomial
Activities P.86: 1,2,3
Adding, substracting, product monomial x polynomial
Activities P.87: 4,5,6,7

4. Identities
Activities P.88: 1,3 (orally)
Activities P.89: 4,5,6,7,8,9

5 Quotientes of polynomials
Dividing traditionally
Activity P.91: 1
Dividing with Ruffini's Rule
Activity P.91: 2

6. Algebraic fractions
+,-,x,:  Simplifying, Comon denominator
Activities P.93:

Review at the end of the unit
P. 94: 1,2,3
P.95: 2,4,9,10,11(A+B,A-B),12
P.96: 16,17,18,19,20,21,25
P. 97: 27,30,31,33,35

If you want to learn more
P. 95: 5,13,34,37