Below is how the official curriculum organizes it. Each strand will get full lessons like the ones in Grade 1 Mathematics.
Square roots and rational numbers; order of operations with exponents; exponent laws
Linear equations and inequalities; polynomials to degree 2: simplify, add, multiply
Surface area of prisms and cylinders; circle properties; views of 3-D objects; similar polygons and scale diagrams; symmetry
Sampling bias and data collection; histograms; theoretical, experimental and subjective probability