Waldorf ~ grade ~ Math ~ Fractions ~ Butterfly Method ~ add or subtract fractions the butterfly way. Adding the visuals really helps the ideas stick, learn your fractions now and higher math will be much easier!
Here is a page from Symmetry math journal @ Runde's Room. This is a joy to read. The teacher has taken such pride in creating a journal entry that is clean and structured. It allows comparisons both vertically and horizontally.