Program divided into fifteen topics: Understand addition and subtraction -- Fluently add and subtract within 10 -- Addition facts to 20: use strategies -- Subtraction facts to 20: use strategies -- Work with addition and subtraction equations -- Represent and interpret data -- Extend the counting sequence -- Understand place value -- Compare two-digit numbers -- Use models and strategies to add tens and ones -- Use models and strategies to subtract tens -- Measure lengths -- Time and money -- Reason with shapes and their attributes -- Equal shares of circles and rectangles.