Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about ...

Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students go over using addition and subtraction strategies to solve two-digit equations using ...

Students go over using number lines to solve the four equations in a fact family. In this lesson, students go over using number lines to solve the four equations in a fact family. Julia uses charts, ...

This is a preview. Log in through your library . Abstract The number line is often recommended as an aid for the teaching of whole number addition and subtraction. The possible stages in young ...

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 ...