Investigate Triangular Numbers 🥇 . This one is an absolute gem! Head over to our patterns and function lessons and try this one today! The hands on and independent element of the lesson are terrific too! . #themathematicsguy #ltdmathematics #education #learning #school #motivation #students #student #knowledge #teacher #children #kids #teaching #success #community #teachers #inspiration #teachersofinstagram #educationmatters #career #educational #fun #onlinelearning #leadership #mathsonline #ma