KS3 Drawing a leaf from observation and blending colour to build tone

This lesson is designed to practice the use of blending colour to create tone. Students will draw a leaf, working from observation and will use oil pastel to blend primary, secondary, tertiary colours and tints to create rich colour, shadow and light.
The lesson includes: a 'hook' or starter activity; objectives; step by step instructions including differentiated learning outcomes; a self evaluation and plenary. The lesson also refers to the work of Georgia O'Keefe and can be used as a follow up or preliminary lesson to studying her work.