Valentine Day Problem Solving / Critical Thinking EDITABLE Activities> Use Pattern Blocks to discover 24 Heart Designs> Download includes:photo answer keys24 challenge cards / task cards that can be cut and laminated for math centers2 types of challenge card - each challenge card is described either by colours or shape names, depending on the grade level of students completing the taskability to add your own task cards> Discover 4 different challenge levels.Level A - 7 challengesLevel B