CheckCard was developed in England by Peter Sellwood to support practical learning in design technology. The system provides a reliable means of constructing accurate models quickly and economically. The 83 page Teacher Resource Book contains a section on tools and techniques for use with CheckCard and the detailed Workcards. The Workcards are divided into four sections: structures, packaging, levers and linkages and pop-ups. Each section includes interesting design challenges. Click here to replenish your CheckCard stock.