Number Rack facilitates the natural development of children's number sense. The movable, colored beads encourage learners to think in groups of fives and tens, helping them to explore and discover a variety of addition and subtraction strategies.
This virtual version of the manipulative is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use iPod Touches, iPhones, or iPads.
Display 1 to 5 rows of beads, 10 beads per row. On the iPad, display up to 10 rows.
Hide beads with the resizable shade, which allows teachers or learners to model subtraction or difference problems.
Reverse the colors of rows 6 to 10 to distinguish (or not) groupings of 25 beads.
Use the drawing tools to annotate work and show understanding
Write equations and expressions with the text tool.
"The new version of Google Earth introduced a feature called Voyager, offering a showcase of guided tours from scientists, nonprofits, and other storytellers and organizations. The tours let you explore a region or multiple locales, through the use of photos, 360-degree videos, and Google Maps Street View, along with text. At launch, there were tours from groups like BBC Earth, Jane Goodall, Sesame Street, and NASA available. Google today announced it's expanding its lineup of tours to include 10 new stories, specifically designed for educational use. Partners on this new effort include National Geographic Society, PBS Education, HHMI Biointeractive and Mission Blue."
"To help us through our initial fears of recording ourselves, Ginger gave us weekly video challenges. One week, she challenged us to film the first three minutes of class. Another week, she wanted to see a transition time. Sometimes we would film times that related to our professional growth plans. Each week, we'd bring the recordings to staff meetings and watch them together with a partner or small group. Sometimes, Ginger would provide prompts for us to use as we discussed the recordings."
