Week 19: Add and subtract fractions

Skills and concepts for Add and subtract fractions.

1. 1. Decompose fractions
2. 2. Decompose fractions multiple ways
3. 3. Add fractions with like denominators using area models
4. 4. Add fractions with like denominators using number lines
5. 5. Add fractions with like denominators
6. 6. Subtract fractions with like denominators using area models
7. 7. Subtract fractions with like denominators using number lines
8. 8. Subtract fractions with like denominators