British Values Citizenship / SMSC resources: 5x fully resourced lessons all complete with starters, worksheets, clips, well differentiated to three levels. These highly-rated lessons all focus on democracy, politics and participation. Also included 4x information packs on UK political parties with comprehension questions, suitable for Tutor Time or Citizenship lessons.
Suitable for KS3/4 but could be adapted.
I use all of these myself as a Head of Citizenship and I really hope you find them excellent value.