Ways to solve a problem
100

Small discs that can show positives or negatives

What is Integer chips

200

A graph that uses bar lengths to show and compare data

What is a bar graph

300

Numbers that are marked on a line 

What is a number line 

400

Arrangement of objects or numbers in columns and rows

What is an Array 

500

A math system that shows bar models, number lines, integer chips, etc

What is a Model