Students should be familiar with the idea of reflecting in a mirror line.

• Reflections presentation PowerPoint;
• Reflections presentation support sheet;
• Reflections worksheet;
• Tracing paper.

Open the Reflections presentation on the interactive whiteboard (IWB). Ask the students to try and visualise how the shapes will reflect and what letter they will form. If you feel it is necessary provide students with the Reflections presentation support sheet to work on in pairs.

Go through the answers on the board by clicking the mouse. The PowerPoint emphasises the fact that reflected points are the same distance from the mirror line as they were originally. You may also want to demonstrate how to use tracing paper by putting some A3 paper over the IWB.

On the last slide, you may want to demonstrate some of the other reflections using tracing paper. Switch on your IWB transparent sheet to write over the slide and do as many as you feel is necessary.

Hand out the tracing paper and Reflections worksheet.

Students work on their worksheet. If done correctly all the shapes fit together to form the word IMAGE. Keep an eye out for students who have made obvious mistakes, especially with the diagonal mirror lines. Do not let them colour in until they have finished it and you have checked it (the advantage of this is it takes only a moment to check they have done it correctly).

At the end of the lesson, tell students what the word shows. They can finish the worksheet for homework and colour it in should they wish to. These make nice display work but don’t put them up until you have done them with all your classes otherwise they will be far too tempted to copy.