This Numbers to 50 Unit covers reading and representing, composing and decomposing, and comparing and ordering numbers up to 50. It also covers estimating the number of objects in collections up to 50. It includes lesson ideas, worksheets, activities, centers, games, and a test. This math unit is based on the expectations in the 2020 Ontario Curriculum. It covers expectations B1.1, B1.2, B1.3, & B1.4.It does not include expectation B1.5. This is part of my updated Counting Unit.This reso