# Math Learning Center Blog | Math Learning Center | MLC

## The Math Learning Center Blog

After using Bridges in Mathematics K-5 for a number of years, **The Hamlin School** of San Francisco, California decided to transition to **Bridges Second Edition.** Recently I visited this independent K-8 school for girls founded in 1863.

**Number Pieces helps students develop a deeper understanding of place value while building their computational skills with multi-digit numbers. Young learners can represent multi-digit numbers, regroup, add, subtract, multiply, and divide. Number Pieces also gives them a drawing tool to label representations and show their understanding.**

** Bridges in Mathematics** second edition, is a comprehensive K–5 mathematics curriculum that equips teachers to fully implement the Common Core State Standards for Mathematics in a manner that is rigorous, coherent, engaging, and accessible to all learners.

The curriculum focuses on developing students’ deep understandings of mathematical concepts, proficiency with key skills, and ability to solve complex and novel

Information Age Education is a nonprofit project of Dr. Dave Moursund, a lifelong contributor to technology in education and founding MLC board member. The organization’s goal to improve education is reflected in a number of initiatives including:

- Offering free books for download
- Publishing a

On November 2nd combined downloads of the Geoboard and Number Rack apps from MLC exceeded 50,000, many from around the globe. In addition, thousands of users have accessed the web versions of these virtual manipulatives.

"We're gratified that these online

**The Number Rack**, or Rekenrek, was designed to support the natural mathematical development of children and specifically to help them generate a variety of addition and subtraction strategies.

Our free activity book, Using the Rekenrek as a Visual Model for Strategic Reasoning in

The Math Learning Center announces the ** second edition of Bridges in Mathematics K-5 ** . Written specifically for the Common Core State Standards, the new edition includes several new visual models such as the Number Line and the Number Rack (also known as the Rekenrek).