Task 6 read each question carefully write the letter of the best correct answer in your notebook

When you want to have a baby you can improve your chance of getting pregnant if you know about ovulation and the ‘fertile window’ in the menstrual cycle. Read more on ovulation and the fertility window .

The egg (ovum)

A woman’s entire egg supply is developed when she is still an unborn baby. At the start of puberty, the eggs are ripened inside the ovary and one is released every month.

Each egg contains genetic material. At menopause, the ovaries stop making hormones and eggs are no longer ripened or released.

Female reproductive system problems

Some reproductive health conditions women may experience include:

The male reproductive system

The male reproductive organs are the penis, the testicles, the epididymis, the vas deferens and the prostate gland:

• Penis – contains tissue that fills with blood during sexual arousal, making the penis erect (or ‘hard’). Semen is a mixture of sperm and fluid from the male reproductive organs. It exits the penis, through the urethra, during ejaculation.
• Testicles (testes) – oval sex glands located in a skin sack called the scrotum. Sperm and sex hormones are made by the testicles. Keeping the testicles outside of the body means they have a lower temperature than the rest of the body, which is important for sperm production.
• Epididymis – a series of small tubes attached to the back of each testicle. The epididymis collects and stores sperm.
• Vas deferens – the epididymis eventually becomes the vas deferens, a larger tube that transports sperm to the urethra (the urinary passage from the bladder).
• Accessory sex glands – including the prostate gland, seminal vesicles and the bulbourethral glands. These glands contribute nourishing fluid to the sperm.

Male reproductive hormones

Hormones are chemical messengers made by glands in the body. Androgens are the hormones that make men ‘male’.

Androgens are responsible for sexual functioning, fertility and secondary sexual characteristics such as muscle mass, height, deep voice and body hair (including the beard). The most important androgen is testosterone, which is manufactured in the testicles.

The sperm

The sperm is the male reproductive cell. Its role is to fertilise an egg. It contains the man’s genetic material.

A sperm is tadpole-shaped and around 60 microns in length (one micron is a millionth of a metre). It has a lashing tail, which helps it to ‘swim’ towards a waiting egg. Sperm production continues throughout a man’s life, from puberty into old age but the quality of a man’s sperm declines from about age 45.

Male reproductive system problems

Some of the reproductive health conditions men may experience include:

Where to get help

This page has been produced in consultation with and approved by:

This page has been produced in consultation with and approved by:

This page has been produced in consultation with and approved by:

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We encounter ideas related to fractions, decimals, ratios and percents on a daily basis. Confident and flexible understanding of these ideas are key to everyday estimation and mental calculation in contexts as diverse as shopping and budgeting, diluting mixtures, understanding scales on maps, interpreting probabilities and odds, and converting among metric units.

Not only is understanding these ideas essential to being numerate they are also foundational to more sophisticated mathematical ideas. If you understand fraction, decimals, ratios and percents you have the basis for understanding topics such as similarity, trigonometry, coordinate geometry, and fancy algebra

Fractions, Decimals, Ratios and Percentages Pre-Test

Fractions are useful in many contexts. Fractions are commonly used in everyday life as well as in mathematics.

The system of decimal numbers is an extension of the whole-number number system. Decimal numbers are one way of representing fractions, ratios and percents.

Fractions, decimals and percentages are related and can be used to express the same number, or proportion in different ways.

An understanding of percent relationships helps us to compare and represent increasing and decreasing proportions.

Module 2: Fractions, Decimals, Ratios and Percentages Quiz