Small Number +/-

Finds sums for Join, Result Unknown, and Separate, Result Unknown problems with totals up to 5, by "counting all" with objects.


You may see this:

Linked Image to Sign In/Sign Up page

Other Examples:

  • When asked, “You have 2 balls and get 1 more. How many in all?,” a child counts out 2, then counts out 1 more, then counts all 3: “1, 2, 3…3!” (join result unknown problem)
  • When asked, “You have 4 toys and give 1 to your friend. How many do you have left?,” a child puts up 4 fingers, then tucks one down, counting the remaining 3: “1, 2, 3…3!” (separate result unknown problem)

Help your student become a(n) Small Number +/-

These activities challenge children to solve simple addition and subtraction problems (all numbers 5 or less, typical Join and Separate types where the result is unknown) by using objects (including fingers).

Special Thanks To

Institute of Education Sciences
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.