Number: Ratio - offline version

Objectives:

• Pupils solve simple problems involving ratio and direct proportion

National Curriculum:

• AT2 level 5

Resources required:

• Worksheet on Ratio



• Pre-prepared cards each with a different multiplication on it (3 x 3, 2 x 7, 6 x 6 etc)

Teaching activities:

Mental Starter

• A multiplication table card chase game in which each student calls out the product of the mutiplication on the previous student's card:
  "You have 3x3.
  I have 9. You have 2x7.
  I have 14. You have 6x6...." etc.

Activities

• Give out the worksheet.
  
  
• Talk about the two examples and decide on the easiest way to go from one to the other.



• Give the pupils time to finish the sheet, then discuss the questions.



• The teacher will need to decide on the ability of the group and tailor the questions toward this.

Extension

• Dividing in a given ratio. The fraction of girls if the ratio of girls to boys is 1:4.

Plenary

• Race game:
  Two pupils stand facing away from the board.
  A question is written on the board behind them.
  On the command of "Go!" they turn around and race to finish the question.
  The winner faces a new challenger.

Suggested homework:

• Teacher-prepared sheet.