This subject, Mathematics 4 series is an attempt to help pupils and teachers as well, to make connections among the essential strands of Mathematics as prescribed in the K-12 Enhanced Basic Education Curriculum trough online. It uses activity-based lessons which tap the pupils' creativity, multiple intelligences, and critical thinking skills. Constructivism  and concrete-to-abstract approach are likewise used in presenting and developing mathematical concepts. It also integrates games, rhymes, action songs, puzzles, and even outdoor activities to make learning Mathematics dynamic, purposeful, and fun.