To Solve a Math Problem (in Spanish or English): Visualize!

One book I highly recommend for anyone who teaches math above the the fourth grade level, all the way up to doctoral students, is Writing to Teach Mathematics and Science. Connolly and Vilardi give a TON of ideas, including drawing out the problem. Students were so engaged with (meaning they didn’t whine and quit watching!) with

Video: Is One Half Fair?

Another short (1:22) video explaining that 1/2 is one of two equal parts, with examples from gardens. This concept is demonstrated by physically dragging one object over the other to see if the sizes are the exact same. Other examples include splitting a deer into two parts (weird), dividing six blankets into two equal shares