Below is how the official curriculum organizes it. Each strand will get full lessons like the ones in Grade 1 Mathematics.
Place value for large and small numbers; factors and multiples; ratio and percent; integers; decimal operations; order of operations
Relationships in tables and graphs; equations with letter variables; preservation of equality
Measure and classify angles; triangles and polygons; perimeter, area and volume formulas; transformations on the Cartesian plane
Line graphs; data collection methods; experimental vs theoretical probability