No Prep - Contains resources to undertake a differentiated Birthday Math Investigation with grade 3, 4 and 5 students and requires them to use higher order thinking skills. Black line masters include:*Birthday Trick - operations*Birthday Recording List - gathering data*Calendar Sheets - recording data*Calendar Question Sheet - operations and time*Birthday Graph - graphing*Birthday Graph Question Sheets - interpreting data*Challenge Questions - operationsThere are two versions and some challenge