Define the two key terms: a raw material comes straight from nature; a processed material is one people have changed to make it more useful. Model with real or pictured examples: raw wool from a sheep → spun into yarn → knitted into a jumper.
Using the slide deck, show four transformations (wool→yarn, sand→glass, oil→plastic, ore→metal) and think aloud about the processing step in each. Model drawing a simple flowchart for one example, with arrows between steps.
Groups use the Raw and Processed Material Cards for a matching game, pairing each raw material with its processed product. Discuss the processing for each pair. Then each group chooses one material and, using the card notes (or a quick search), sequences the processing steps into a flowchart.
Students complete the From Raw to Useful worksheet: matching raw to processed materials, classifying items as raw or processed, drawing a wool-to-jumper flowchart, and explaining why recycling glass or metal helps the environment (using the term "raw material").