In this unit, students explore our numeration system in depth. Students begin by looking at patterns in our system and then work with other systems to help discover what constitutes a place-value system and a base system. By analyzing the structure of each system and comparing and contrasting different numeration systems, they will gain a deeper understanding of place value and bases and be able to justify why our system is both a place-value system and a base system.
IM® v.360 K-5 Math is an IM Certified curriculum providing trusted, highly rated materials to ensure students thrive in mathematics. Each Illustrative Mathematics lesson has four phases, from pre-unit practice modules to cool downs, focusing students’ attention on definitions, notations, and graphical conventions contributing to the development of real numbers.
Grade 3
The big ideas in grade 3 include: developing understanding of multiplication and division and strategies for multiplication and division within 100; developing unde
IM® v.360 K-5 Math is an IM Certified curriculum providing trusted, highly rated materials to ensure students thrive in mathematics. Each Illustrative Mathematics lesson has four phases, from pre-unit practice modules to cool downs, focusing students’ attention on definitions, notations, and graphical conventions contributing to the development of real numbers.
Grade 2
The big ideas in grade 2 include: extending understanding of the base-ten number system, building fluency with addition and subtraction, using standard units of mea