Here are some fun on-line applets for adding and subtracting integers, using 2 different models (number lines and colour tiles). The last is a game for 2 players to play on line, a version of Connect 4.
I am Carole Fullerton, a private consultant working with teachers around British Columbia (and beyond!) in the area of numeracy. I work with districts, whole school staffs, with school-based learning teams, in classrooms and with parents in an effort to promote mathematical thinking.
To learn more, please email me at:
Or check out my LinkedIn profile:
For resources, click the blue button above.
Multiplicative Thinking: From Skip Counting to Algebra – Grades 3-8
Remarkable Cuisenaire Rods: Mathematical Tasks for Primary Classrooms
Cuisenaire Rods Rock! Multiplication and Proportionality in Grades 4-7
Teaching Addition & Subtraction in Grades 2 and 3 Click to order!
Teaching Addition & Subtraction in Grades 1 and 2 Click to order!
Teaching Division in Grades 4-7 Click to order!
Mastering Subtraction Facts Click to order!
Number Sense – K and K/1. Click to order!
Mastering the Addition Facts. Click to order!
Mastering Multiplication Facts Click to order!
The BIG Math Ideas
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
- 950,747 hits