4th Sep '25

Schemes of Work

B2
- B2.2
  - Lesson 01 - (Setting-up) Required Practical: How do light and gravity affect plant growth? Lesson Plan Lesson Title
    - (Separates only) Required Practical 8 - Effect of Light / Gravity on Seeds (Length and Biological Drawings) (AT skills 1,3,4,7)
      - Suggested Activity:
        Students plan the investigation, taking care to identify variables and describe a method.
        Students set up cress seeds.
        Investigating light:
        Some in a dark cupboard, some on window sill, some in cardboard box with a hole cut in one side.
        
        Investigating gravity:
        some flat on the windowsill, some taped sideways on the wall of the windowsill (make cress seeds are secure).
        Equipment Required:
        Required practical 8 - Effect of light/gravity on plant growth.
        Cress seeds,
        small pots,
        cotton wool, pipettes,
        small cardboard boxes (old pinhole cameras?)
  - Lesson 02 - How are hormones involved in reproduction? Lesson Plan Lesson Title
    - Students should be able to describe the roles of hormones in human reproduction, including the menstrual cycle.
    - During puberty reproductive hormones cause secondary sex characteristics to develop.
      - Suggested Activity:
        Label a diagram for male and female for where the reproductive hormones are produced.
        HT Create a timeline.
        GF : How are hormones linked to mental illness?
    - Oestrogen is the main female reproductive hormone produced in the ovary.
      - Suggested Activity:
        Circus task for the different hormones (info into a table).
    - At puberty eggs begin to mature and one is released approximately every 28 days. This is called ovulation
    - Testosterone is the main male reproductive hormone produced by the testes and it stimulates sperm production.
    - Several hormones are involved in the menstrual cycle of a woman.
    - Follicle stimulating hormone (FSH) causes maturation of an egg in the ovary.
    - Luteinising hormone (LH) stimulates the release of the egg.
    - Oestrogen and progesterone are involved in maintaining the uterus lining
    - (HT only) Students should be able to explain the interactions of FSH, oestrogen, LH and progesterone, in the control of the menstrual cycle
    - (HT only) Students should be able to extract and interpret data from graphs showing hormone levels during the menstrual cycle.
  - Lesson 03 - What are the different forms of contraception? Lesson Plan Lesson Title
    - Students should be able to evaluate the different hormonal and non-
      hormonal methods of contraception.
      - Suggested Activity:
        Show students the methods of contraception. Separate students into groups, get them to learn about a specific method and then rejoin to feedback. (Jigsaw).
        Equipment Required:
        Condom
        Femidom
        Contraceptive pills
        Coil
        Implant
    - Fertility can be controlled by a variety of hormonal and non-hormonal methods of contraception.
    - These include:
      ? oral contraceptives that contain hormones to inhibit FSH production so that no eggs mature
      ? injection, implant or skin patch of slow release progesterone to inhibit the maturation and release of eggs for a number of months or years
      ? barrier methods such as condoms and diaphragms which prevent the
      sperm reaching an egg
      ? intrauterine devices which prevent the implantation of an embryo or
      release a hormone
      ? spermicidal agents which kill or disable sperm
      ? abstaining from intercourse when an egg may be in the oviduct
      ? surgical methods of male and female sterilisation. Explain everyday and technological applications of science; evaluate associated personal, social, economic and environmental implications; and make
      decisions based on the evaluation of evidence and arguments.
    - (HT) Explain the use of hormones in modern
      reproductive technologies to treat infertility
    - (HT) Explain how developments of
      microscopy techniques have enabled IVF treatments to develop.
    - This includes giving FSH and LH in a ?fertility drug? to a woman. She may then become pregnant in the normal way. (HT only)
    - Understand social and ethical issues associated with IVF treatments (HT only)
      - Suggested Activity:
        HT : Information on fertility treatments.
        Debate on their use - octomum.
    - Although fertility treatment gives a woman the chance to have a baby of her own:
      ? it is very emotionally and physically stressful
      ? the success rates are not high
      ? it can lead to multiple births which are a risk to both the babies and the mother. (HT only)
    - Evaluate from the perspective of patients and doctors the methods of treating infertility.
      (HT only)
  - Lesson 04 - How do plants grow in certain directions? Lesson Plan Lesson Title
    - (Separates only) Plants produce hormones to coordinate and control growth and responses to light (phototropism) and gravity (gravitropism or geotropism).
      - Suggested Activity:
        Introduce the types of tropism and get students to figure out the definition for each.
        Diagram drawing for the affect of auxins.
    - (Separates only) Unequal distributions of auxin cause unequal growth rates in plant roots and shoots. (Required Practical)
    - (Separates only) (HT only) Gibberellins are important in initiating seed germination.
    - (Separates only) (HT only) Ethene controls cell division and ripening of fruits.
    - (Separates only) (HT only) The mechanisms of how gibberellins and ethene work are not required.
    - (Separates only) Students should be able to describe the effects of some plant hormones and the different ways people use them to control plant growth.
      - Suggested Activity:
        EW : Evaluate the use of rooting powders and weed killers in horticulture and agriculture.
    - (Separates only) Plant growth hormones are used in agriculture and horticulture
    - (Separates only) Understand how the everyday use of hormones as weed killers has an effect on biodiversity.
    - (Separates only) Auxins are used:
      ? as weed killers
      ? as rooting powders
      ? for promoting growth in tissue culture.
    - (Separates only) Ethene is used in the food industry to control ripening of fruit during storage and transport.
    - (Separates only) Gibberellins can be used to:
      ? end seed dormancy
      ? promote flowering
      ? increase fruit size.
  - Lesson 05 - Required Practical: How do light and gravity affect plant growth? Lesson Plan Lesson Title
    - (Separates only) Required Practical 8 - Affect of Light / Gravity on Seeds (Length and Biological Drawings) (AT skills 1,3,4,7)
      - Suggested Activity:
        Draw graphs of results or from fake data looking at length over time in days. One from each area (full light, partial light, no light). All on the same scatter graph.
        Writing conclusions and evaluations. The evaluations should be based on validity and precision.
        Equipment Required:
        Required Practical 8 - Affect of Light / Gravity on Seeds (Length and Biological Drawings)
        Pre-grown cress plants from a variety of conditions.
        Sharp pencils
        Rulers
        Graph paper