This website is a wonderful way to get your students visualizing the problem by working with manipulatives on the Promethean board. Students can work the problem on their Chromebooks while one student demonstrates on the board. Brainingcamp can be accessed through ClassLink.
A few ideas are:
Place Value Tiles for comparing numbers
Base 10 Blocks for whole numbers or decimals
Clocks for elapsed time
Counting money
Graphing ordered pairs or tables using the XY Coordinate Board
There are so many more ways to use Brainingcamp!
Students worked together to fill out the Venn Diagram with the correct vocabulary words for addition and subtraction.
Remember to pause 3 seconds between writing each vocabulary word so that they can be dragged and dropped into place independently.