K.OA.1 – Represent addition and subtraction with objects, fingers, mental images, drawings (Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)), sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
Samples: Add on to 5. Add on to 10. Subtraction with visual cues: Activity 1. Addition to 20. Make 10.
1 – Grade 1
1.OA – Operations & Algebraic Thinking
1.OA.1 – 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. (See Glossary, Table 1. http://www.corestandards.org/the-standards/mathematics/glossary/glossary/ )
Your account will have additional material that tracks students progress to provide individual focused material and reports. Also it includes fun incentives to encourage students to learn more all customised to each students needs.