Give students an opportunity to create videos to show information about one of the family sub-topics (refer back to your class idea web). Believe it or not, students even younger than grade one have the ability to use video recording devices. If your school or school division has access to a class set of digital cameras these will probably have a video function built into them, another option would be to gain access to several flipcams or a similar technology. With flipcams students only need to press one button to start and stop recording, perfect for first time video creators! Whatever technology you gain access to, you will most likely need to take your students through step-by-step instructions of how to use the device.
The process of creating a video can be lengthy or it may be spontaneous. The more time you give students for planning the more developed their videos will be. You may want students to brain storm what their video will be about, what they will use, and maybe even create a sequence of events using drawings to show what will happen in their video. Videos could be dramatizations using classmates as 'family members', they may use miniature people and props, or they could create and use paper cut outs (as in the example below).
Remember to upload these videos to your blog once they are recorded! I would suggest uploading to youtube, in my experience it is the easiest site to work with and embed from. If you have never uploaded a video to the web using youtube before click here.