Learning Objectives

18.1 To define hair colouring. (COM)

Identify possible reasons why people colour hair. Define hair colouring as "chemically changing the colour of hair".

18.2 To explain colour theory. (COM)

Discuss and explain:

• Primary
• Secondary
• Tertiary
• Quaternary
• Complementary
• Tone
• Level

Explain chemistry of colour on hair.

18.3 To identify the three types of hair colour. (COM)

Explain the difference between temporary, semi-permanent, and permanent hair colours.

18.4 To analyze hair. (CCT)

Review hair analysis, advanced learning objective 14.5 and 17.5. Determine if it is safe to colour hair.

18.5 To perform a patch test. (IL)

Explain the purpose of a predisposition (patch) test.

Demonstrate the procedure for giving a patch test.

Determine if hair can be coloured without an allergic reaction.

18.6 To determine level of hair colour.

Using colour swatches, determine the level of hair colour.

Determine if colour is warm or cool. Refer to introductory learning objective 7.1A.

Select colour.

18.7 To perform a strand test.

Discuss the purpose of giving a strand test. Demonstrate a strand test.

Discuss with client whether the colour chosen is the desired colour. If not determine how to alter the colour. (PSVS)

18.8 To demonstrate hair colouring techniques. (CCT, IL)

Discuss different hair colouring techniques. Demonstrate a hair colouring technique. Have sudents practise a colouring technique. Provide student feedback. Determine criteria for evaluating a quality colour.

Note: Stress the importance of following manufacturer’s instructions when mixing and applying a colour.

Stress safety issues when colouring hair.

Demonstrate other colouring techniques in the above manner.

Explain the difference of adding colour or taking away colour (Highlighting).

Demonstrate application techniques using conditioner instead of colour. Use hair swatches and experiment with different colour formulations.

Experiment with different coloured swatches of hair. Label and record colours used and timing of the product.

18.9 To follow appropriate safety measures when colouring hair. (PSVS)

Students will create a list of safety rules to be considered when colouring hair.