Addimals and Subtractimals teach single-digit addition and subtraction for grades K-2.
Addimals & Subtractimals
Teachley's K-2 apps were produced by teachers and researchers, award winning game designers and noted voice talent.App Screen Shots
Not All Education Apps
We don’t rely on digital flashcards and worksheets.
Are Created Equal
Teachley's characters show kids how to master different addition and subtraction strategies, like counting on, counting back, and using doubles facts.Visual Models To Aid Learning
Children who struggle fail to learn key math strategies. That’s why we help students visualize these strategies using models, like the ones shown here:
For Us, Games Are
As former teachers and experts in cognition and learning we're
dedicated to using research to better understand how kids learn .
a Serious Subject
Research shows strategies drive learning. By promoting conceptual understanding and fact fluency kids don't just solve problems, they come away with new tools for learning math.TYPICAL DEVELOPMENT — SOLVING 3 + 4 POOR MATH PERFORMERS
Aligned with Common Core and other state standardsWe address many K-2 Operations and Algebraic Thinking Common Core Standards and other state standards, including:
CCSS.Math.Content.1.OA.C.6 Add and Subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14)...and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).