A second type of chart is the “bottom-up” chart, which has the numbers increasing in the opposite direction. A bottom-up hundreds chart. (Vera Wagner), Author provided (no reuse) Counting by 10s ...

“We found that children using the top-down chart used a more sophisticated strategy of counting by 10 and moving vertically, rather than using the more simplistic strategy of counting by one and ...

A second type of chart is the “bottom-up” chart, which has the numbers increasing in the opposite direction. Counting by 10s Children can move from one number to another in the chart to solve problems ...