The Mortensen Math, also known as Mortensen More Than Math, Triangle 1-10 Tray is perfect for K-12 math activities, and includes one each of the unit bars 1-9 and a 10 bar, enabling versatile mathematical exploration.
Anna's Math Page – Mortensen Math and More
explore and discover Mortensen Math and More with Anna and start building math fluency one block at a time
Anna, is it necessary if you have combo kit?
No you don’t need the Triangle Kit if you have the Combo Kit. It has it’s purpose but it is more of an extra than a necessity.