Instructor Notes:

For materials preparations, click ‘Back to Main Menu’ button and select ‘Getting Started – EDC Setup’.

Read Every Day Counts Teacher’s Guide, Kanter and Gillespie, Great Source, 2005 or 2012 edition, p. 41-42.

On Day 37, if Ana suggests adding 30 or 3 tens to get 596 and then adding 7 more to reach $603, we can act this out using the play money bills and describe Ana’s “counting on by tens” strategy. If Andre chooses to round $37 to $40, a “friendlier number”, to reach $606, and then takes away $3, because $40 is $3 too much, we can say Andre used a “put and take” or a “think of a friendlier number” strategy. We can act it out with the money to show Andre’s way of thinking. Labeling the strategies that children suggest can help other children remember them, in part by associating a strategy with the child who shared it.

This strategy of acting out the addition using the play money bills can also be used to demonstrate the regrouping algorithm, exchanging for a ten and for a hundred whenever an exchange is possible.

This is also a good time to engage students in using estimation and mental math skills to predict how many more days are needed to reach $1000. Again, children will find a variety of paths to the solution.