Archive for February, 2013

IntMath Newsletter: Subitizing, Jacob, Fractals and Donald Duck

1. Gong Xi Fa Cai
2. Counting game and Subitizing
3. Jacob's Staff
4. Creating a Google-like classroom climate
5. Math puzzles
6. Friday math movie
7. Final thought - Perfect days

Read the rest of this entry »

Jacob’s Staff

Jacob's Staff
Scientists used Jacob's Staff during the Renaissance to find heights and distances, using trigonometry. It was a forerunner to the sextant.

Read the rest of this entry »

Full archive

See the blog sitemap for all previous articles.