We teach grammar in both a contextualised and decontextualised way (the best of both worlds in my opinion). We have one lesson a fortnight dedicated to grammar teaching and follow Daisy Christodoulou’s suggested programme. You can find this here: http://www.learningspy.co.uk/english-gcse/principled-curriculum-design-teach-english/ (Slide 12).
Below is the grammar workbook I have produced for year 7 covering: The parts of speech: verbs, nouns, articles, adjectives, prepositions. Subject-verb agreement and tense. Aside from tense, the supporting texts have been chosen to fit in with our units in Term 1: Language Through Time and in Term 2: An Introduction to Poetry. Therefore, this may need some adaptation to make relevant for the units you are going to teach. These lessons will take students all the way through terms 1 and 2 (or until Christmas).
I will producing flipcharts but at the moment I need to try and get Year 8 and Year 9 done.