S Club 7 once sang that 'we are two in a million'. Help your children to understand this timeless classic (and a lot of other useful applications for place value facts) with this Year 5 Read and Write Numbers to 1,000,000 Modelling PowerPoint! Leading your class through a selection of varied fluency and reasoning and problem-solving questions related to the topic, it also comes with answer pages to help you to identify misconceptions and give immediate feedback.
The questions on the PowerPoint match those found on the corresponding worksheets for this lesson, so it's a great place to start before giving those a go!