Addition, subtraction, multiplication, division — each with an interior life, a personality, and more going on than the symbol lets on.
It is time to expose the secret double life of subtraction. It all comes down to that foundational number sense we work with students to develop as they grow as elementary school mathematicians. We give students the opportunity to build…
We’ve covered the critical pieces of developing counting with meaning in this post. What happens next? Enter additive thinking! When counting gives way to reasoning, it is the beginning of additive thinking. The journey from “count everything” to “just know…