Maths Form 4 Lessons Difficult to Learn, Difficult to Teach Lesson Concepts LOCILongitude and Latitude – JohnsonsTypes of LociMid-ordinate Rule 3D Angle Between PlanesLongitude and Latitude – DanielMaxima and MinimaTrapezium Rule Longitude and LatitudeCalculating Distance on a Great CircleIndefinite IntegralsDifferentiation