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Reflection - Coggle Diagram

- - - - Geometric progression (GP)
        
        When a constant is multiplied by the previous number, in the series, to get the next number
      - Arithmetic progression (AP)
        
        When a constant is added to the previous number, in the series, to get the next number
      - Formula derivations
        
        AP formula
        
        a + (n - 1)d
        
        GP formula
        
        ar^n - 1
        
        AP sum formula
        
        n/2 (2a + (n - 1)d
        
        GP sum formula
        
        a(r^n - 1) / r-1
      - Application
      - Worksheet
        
        Sum of GP and AP formula
  - - - I need practice on problems like: If a- 1/a = p, find the value of (a + 1/a)^2
      - Formulas
        
        a^2 - b^2 = (a + b)(a - b)
        
        (a + b)^2 = a^2 + b^2 + 2ab
        
        (a - b)^2 = a^2 + b^2 - 2ab
        
        a^2 + b^2 = (a + b)^2 - 2ab
      - Using LCM to factorize
- - - - Asexual
        
        One parent
        
        No fertilization or sex cells involved
        
        Genetically identical
        
        Also known as 'clone'
        
        Types
        
        Regeneration
        
        When an organism re-grows the parts that it lost
        
        Mostly occurs in vertebrates
        
        Budding
        
        Off-springs develop as growths on the body of the parent
      - Sexual
        
        Two parents
        
        Sperm cell (male gamete) and ovum or egg cell (female gamete) unite during fertilization
        
        Genetically unique
    - - External
        
        Mode of reproduction where the male's sperm fertilizes the female's eggs outside the female's body
      - Internal
        
        Mode of reproduction where the male's sperm and female's egg fertilize inside the female's body
    - - Female
        
        Vagina
        
        Muscular tube from the Vaginal opening to the cervix
        
        Labia
        
        Protects the openings to reduce risk of infection
      - Male
- - - - Helps to provide a surface for electrode reactions
      - Made of electric conductors
      - Types of electrodes
        
        Inert
        
        Do not take part in the chemical reaction
        
        Active
        
        Take part in the chemical reaction
- - - - Discovered by J.J. Thompson
        
        Found that they are negatively charged particles that are smaller than atoms
        
        Showed that atoms are not indivisible but are made up of sub-atomic particles
    - - Made by J.J. Thompson
      - Suggests that an atom is ball that consists of positively charged matter and have electrons
      - Was proved wrong
    - - Conducted by Hans Geiger and Ernest Marsden under the supervision of Ernest Rutherford in the University of Manchester in 1909
      - Showed that almost the whole mass of an atom is concentrated in a tiny volume in the centre of the atom
        
        Rutherford called it a 'nucleus'
        
        The positively charged mass was responsible for deflecting the alpha particles that propelled through the gold foil