1.MD.3:
Measurement And Data
Tell And Write Time.
Tell and write time in hours and half-hours using analog and digital clocks.
1.OA.1a:
Operations And Algebraic Thinking
Represent And Solve Problems Involving Addition And Subtraction.
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
1.MD.1:
Measurement And Data
Measure Lengths Indirectly And By Iterating Length Units.
Order three objects by length; compare the lengths of two objects indirectly by using a third object.
