Draw a number line from 1 to 10 on your piece of paper. 3. Get a deck of cards to practice the counting-on strategy. Draw two cards from the deck and add the two numbers of the cards using a ...

Addition & subtraction strategies to solve two-digit equations using an open number line.

Explains the concept of zero in mathematics, emphasizing its role as a number that represents the empty set. It illustrates how zero is used in addition and subtraction, showing that adding or ...

We present a case study of teaching and learning fraction addition on number lines in one 6th-grade classroom that used the Connected Mathematics Project Bits and Pieces II materials. Our main ...