In these classes, directional leads are often not taught effectively at beginner level (even at intermediate level), and so as soon as the class goes to freestyle dancing the dancers start to rotate in a rotating slot style. For these groups, dancing in the slot is an advanced technique / preference that can be developed and adds another dimension to Modern Jive, and it also looks impressive when a group of dancers are dancing slotted in the same area in the same direction. Where Modern Jive tends to be danced slotted by default, slotted dancing tends to be taught rather more effectively, and it's reinforced in social dancing where it is possible to pack many more people onto a dance floor more safely if they are all dancing slotted. These groups have also tended to modify older moves slightly from the classical form, in order to take advantage of the known direction of momentum and other technical advantages of the slotted form. Presenting forward / Blocking Presenting forward is a skill often developed by professionals, competition dancers and showcase dancers and requires further skills and additional techniques. Here the dancers develop the skill of presenting in one consistent direction (usually forward or towards an audience as compared to facing each other). Dips, drops, poses, exiting moves / lifts and even smiling consistently in one direction in order to present the best possible picture to spectators, judges and/or audiences are all factors. The term "Modern Jive" was coined in 1990 by Christine Keeble on a program called 'How to Jive', designed to promulgate this new style of jive. At that time the dance was known variously as Ceroc, LeRoc, French Jive or Party Dance Style. Christine Keeble used the term 'modern jive' to encompass all of these names. The term 'modern jive' was adopted, despite the absence of chasse or triple step (typical of "real" jive forms). Various clubs used the umbrella term as the dance spread out from its two earliest centres of London and Bristol and it later became accepted as a generic term for the dance. It is now used by a large number of independent teachers across the UK and internationally. It is also used by many of the franchise operators, although these companies often still prefer to use their own branding. In the English-speaking world, Modern Jive classes and events are often franchised or run under various brand names, including, Blitz, DanceJive, ViBe Dance Nights, "Revolution Dance" Northwest, Ceroc, LeRoc, Ginger Jive, Mo'Jive, Cloud9, Jiveasy, South Coast Modern Jive, The Thing, and others.